420667520

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1$

素因数の和:303

約数の個数: 256

約数和(自身を含む): 1283143680

約数和(自身を除く): 862476160

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 32, 35, 40, 52, 56, 62, 64, 65, 70, 80, 91, 104, 112, 124, 128, 130, 140, 155, 160, 182, 208, 217, 224, 233, 248, 260, 280, 310, 320, 364, 403, 416, 434, 448, 455, 466, 496, 520, 560, 620, 640, 728, 806, 832, 868, 896, 910, 932, 992, 1040, 1085, 1120, 1165, 1240, 1456, 1612, 1631, 1664, 1736, 1820, 1864, 1984, 2015, 2080, 2170, 2240, 2330, 2480, 2821, 2912, 3029, 3224, 3262, 3472, 3640, 3728, 3968, 4030, 4160, 4340, 4480, 4660, 4960, 5642, 5824, 6058, 6448, 6524, 6944, 7223, 7280, 7456, 8060, 8155, 8320, 8680, 9320, 9920, 11284, 11648, 12116, 12896, 13048, 13888, 14105, 14446, 14560, 14912, 15145, 16120, 16310, 17360, 18640, 19840, 21203, 22568, 24232, 25792, 26096, 27776, 28210, 28892, 29120, 29824, 30290, 32240, 32620, 34720, 36115, 37280, 42406, 45136, 48464, 50561, 51584, 52192, 56420, 57784, 58240, 60580, 64480, 65240, 69440, 72230, 74560, 84812, 90272, 93899, 96928, 101122, 104384, 106015, 112840, 115568, 121160, 128960, 130480, 138880, 144460, 149120, 169624, 180544, 187798, 193856, 202244, 208768, 212030, 225680, 231136, 242320, 252805, 257920, 260960, 288920, 339248, 361088, 375596, 387712, 404488, 424060, 451360, 462272, 469495, 484640, 505610, 521920, 577840, 657293, 678496, 751192, 808976, 848120, 902720, 924544, 938990, 969280, 1011220, 1043840, 1155680, 1314586, 1356992, 1502384, 1617952, 1696240, 1805440, 1877980, 1938560, 2022440, 2311360, 2629172, 2713984, 3004768, 3235904, 3286465, 3392480, 3755960, 4044880, 4622720, 5258344, 6009536, 6471808, 6572930, 6784960, 7511920, 8089760, 10516688, 12019072, 13145860, 13569920, 15023840, 16179520, 21033376, 26291720, 30047680, 32359040, 42066752, 52583440, 60095360, 84133504, 105166880, 210333760, 420667520]

約数ペア:

[(1, 420667520), (2, 210333760), (4, 105166880), (5, 84133504), (7, 60095360), (8, 52583440), (10, 42066752), (13, 32359040), (14, 30047680), (16, 26291720), (20, 21033376), (26, 16179520), (28, 15023840), (31, 13569920), (32, 13145860), (35, 12019072), (40, 10516688), (52, 8089760), (56, 7511920), (62, 6784960), (64, 6572930), (65, 6471808), (70, 6009536), (80, 5258344), (91, 4622720), (104, 4044880), (112, 3755960), (124, 3392480), (128, 3286465), (130, 3235904), (140, 3004768), (155, 2713984), (160, 2629172), (182, 2311360), (208, 2022440), (217, 1938560), (224, 1877980), (233, 1805440), (248, 1696240), (260, 1617952), (280, 1502384), (310, 1356992), (320, 1314586), (364, 1155680), (403, 1043840), (416, 1011220), (434, 969280), (448, 938990), (455, 924544), (466, 902720), (496, 848120), (520, 808976), (560, 751192), (620, 678496), (640, 657293), (728, 577840), (806, 521920), (832, 505610), (868, 484640), (896, 469495), (910, 462272), (932, 451360), (992, 424060), (1040, 404488), (1085, 387712), (1120, 375596), (1165, 361088), (1240, 339248), (1456, 288920), (1612, 260960), (1631, 257920), (1664, 252805), (1736, 242320), (1820, 231136), (1864, 225680), (1984, 212030), (2015, 208768), (2080, 202244), (2170, 193856), (2240, 187798), (2330, 180544), (2480, 169624), (2821, 149120), (2912, 144460), (3029, 138880), (3224, 130480), (3262, 128960), (3472, 121160), (3640, 115568), (3728, 112840), (3968, 106015), (4030, 104384), (4160, 101122), (4340, 96928), (4480, 93899), (4660, 90272), (4960, 84812), (5642, 74560), (5824, 72230), (6058, 69440), (6448, 65240), (6524, 64480), (6944, 60580), (7223, 58240), (7280, 57784), (7456, 56420), (8060, 52192), (8155, 51584), (8320, 50561), (8680, 48464), (9320, 45136), (9920, 42406), (11284, 37280), (11648, 36115), (12116, 34720), (12896, 32620), (13048, 32240), (13888, 30290), (14105, 29824), (14446, 29120), (14560, 28892), (14912, 28210), (15145, 27776), (16120, 26096), (16310, 25792), (17360, 24232), (18640, 22568), (19840, 21203)]