240381440

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1$

素因数の和:300

約数の個数: 160

約数和(自身を含む): 643458816

約数和(自身を除く): 403077376

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, 208, 233, 248, 256, 260, 310, 320, 403, 416, 466, 496, 512, 520, 620, 640, 806, 832, 932, 992, 1040, 1165, 1240, 1280, 1612, 1664, 1864, 1984, 2015, 2080, 2330, 2480, 2560, 3029, 3224, 3328, 3728, 3968, 4030, 4160, 4660, 4960, 6058, 6448, 6656, 7223, 7456, 7936, 8060, 8320, 9320, 9920, 12116, 12896, 14446, 14912, 15145, 15872, 16120, 16640, 18640, 19840, 24232, 25792, 28892, 29824, 30290, 32240, 33280, 36115, 37280, 39680, 48464, 51584, 57784, 59648, 60580, 64480, 72230, 74560, 79360, 93899, 96928, 103168, 115568, 119296, 121160, 128960, 144460, 149120, 187798, 193856, 206336, 231136, 242320, 257920, 288920, 298240, 375596, 387712, 462272, 469495, 484640, 515840, 577840, 596480, 751192, 775424, 924544, 938990, 969280, 1031680, 1155680, 1502384, 1550848, 1849088, 1877980, 1938560, 2311360, 3004768, 3698176, 3755960, 3877120, 4622720, 6009536, 7511920, 7754240, 9245440, 12019072, 15023840, 18490880, 24038144, 30047680, 48076288, 60095360, 120190720, 240381440]

約数ペア:

[(1, 240381440), (2, 120190720), (4, 60095360), (5, 48076288), (8, 30047680), (10, 24038144), (13, 18490880), (16, 15023840), (20, 12019072), (26, 9245440), (31, 7754240), (32, 7511920), (40, 6009536), (52, 4622720), (62, 3877120), (64, 3755960), (65, 3698176), (80, 3004768), (104, 2311360), (124, 1938560), (128, 1877980), (130, 1849088), (155, 1550848), (160, 1502384), (208, 1155680), (233, 1031680), (248, 969280), (256, 938990), (260, 924544), (310, 775424), (320, 751192), (403, 596480), (416, 577840), (466, 515840), (496, 484640), (512, 469495), (520, 462272), (620, 387712), (640, 375596), (806, 298240), (832, 288920), (932, 257920), (992, 242320), (1040, 231136), (1165, 206336), (1240, 193856), (1280, 187798), (1612, 149120), (1664, 144460), (1864, 128960), (1984, 121160), (2015, 119296), (2080, 115568), (2330, 103168), (2480, 96928), (2560, 93899), (3029, 79360), (3224, 74560), (3328, 72230), (3728, 64480), (3968, 60580), (4030, 59648), (4160, 57784), (4660, 51584), (4960, 48464), (6058, 39680), (6448, 37280), (6656, 36115), (7223, 33280), (7456, 32240), (7936, 30290), (8060, 29824), (8320, 28892), (9320, 25792), (9920, 24232), (12116, 19840), (12896, 18640), (14446, 16640), (14912, 16120), (15145, 15872)]