781239680

素因数分解:

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

素因数の和:309

約数の個数: 192

約数和(自身を含む): 2096565120

約数和(自身を除く): 1315325440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 169, 208, 233, 248, 260, 310, 320, 338, 403, 416, 466, 496, 520, 620, 640, 676, 806, 832, 845, 932, 992, 1040, 1165, 1240, 1352, 1612, 1664, 1690, 1864, 1984, 2015, 2080, 2330, 2480, 2704, 3029, 3224, 3380, 3728, 3968, 4030, 4160, 4660, 4960, 5239, 5408, 6058, 6448, 6760, 7223, 7456, 8060, 8320, 9320, 9920, 10478, 10816, 12116, 12896, 13520, 14446, 14912, 15145, 16120, 18640, 19840, 20956, 21632, 24232, 25792, 26195, 27040, 28892, 29824, 30290, 32240, 36115, 37280, 39377, 41912, 48464, 51584, 52390, 54080, 57784, 60580, 64480, 72230, 74560, 78754, 83824, 93899, 96928, 104780, 108160, 115568, 121160, 128960, 144460, 149120, 157508, 167648, 187798, 193856, 196885, 209560, 231136, 242320, 257920, 288920, 315016, 335296, 375596, 387712, 393770, 419120, 462272, 469495, 484640, 577840, 630032, 670592, 751192, 787540, 838240, 924544, 938990, 969280, 1155680, 1220687, 1260064, 1502384, 1575080, 1676480, 1877980, 1938560, 2311360, 2441374, 2520128, 3004768, 3150160, 3352960, 3755960, 4622720, 4882748, 5040256, 6009536, 6103435, 6300320, 7511920, 9765496, 12019072, 12206870, 12600640, 15023840, 19530992, 24413740, 25201280, 30047680, 39061984, 48827480, 60095360, 78123968, 97654960, 156247936, 195309920, 390619840, 781239680]

約数ペア:

[(1, 781239680), (2, 390619840), (4, 195309920), (5, 156247936), (8, 97654960), (10, 78123968), (13, 60095360), (16, 48827480), (20, 39061984), (26, 30047680), (31, 25201280), (32, 24413740), (40, 19530992), (52, 15023840), (62, 12600640), (64, 12206870), (65, 12019072), (80, 9765496), (104, 7511920), (124, 6300320), (128, 6103435), (130, 6009536), (155, 5040256), (160, 4882748), (169, 4622720), (208, 3755960), (233, 3352960), (248, 3150160), (260, 3004768), (310, 2520128), (320, 2441374), (338, 2311360), (403, 1938560), (416, 1877980), (466, 1676480), (496, 1575080), (520, 1502384), (620, 1260064), (640, 1220687), (676, 1155680), (806, 969280), (832, 938990), (845, 924544), (932, 838240), (992, 787540), (1040, 751192), (1165, 670592), (1240, 630032), (1352, 577840), (1612, 484640), (1664, 469495), (1690, 462272), (1864, 419120), (1984, 393770), (2015, 387712), (2080, 375596), (2330, 335296), (2480, 315016), (2704, 288920), (3029, 257920), (3224, 242320), (3380, 231136), (3728, 209560), (3968, 196885), (4030, 193856), (4160, 187798), (4660, 167648), (4960, 157508), (5239, 149120), (5408, 144460), (6058, 128960), (6448, 121160), (6760, 115568), (7223, 108160), (7456, 104780), (8060, 96928), (8320, 93899), (9320, 83824), (9920, 78754), (10478, 74560), (10816, 72230), (12116, 64480), (12896, 60580), (13520, 57784), (14446, 54080), (14912, 52390), (15145, 51584), (16120, 48464), (18640, 41912), (19840, 39377), (20956, 37280), (21632, 36115), (24232, 32240), (25792, 30290), (26195, 29824), (27040, 28892)]