28742480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{953}}^1$

素因数の和:1008

約数の個数: 80

約数和(自身を含む): 74526480

約数和(自身を除く): 45784000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 40, 52, 58, 65, 80, 104, 116, 130, 145, 208, 232, 260, 290, 377, 464, 520, 580, 754, 953, 1040, 1160, 1508, 1885, 1906, 2320, 3016, 3770, 3812, 4765, 6032, 7540, 7624, 9530, 12389, 15080, 15248, 19060, 24778, 27637, 30160, 38120, 49556, 55274, 61945, 76240, 99112, 110548, 123890, 138185, 198224, 221096, 247780, 276370, 359281, 442192, 495560, 552740, 718562, 991120, 1105480, 1437124, 1796405, 2210960, 2874248, 3592810, 5748496, 7185620, 14371240, 28742480]

約数ペア:

[(1, 28742480), (2, 14371240), (4, 7185620), (5, 5748496), (8, 3592810), (10, 2874248), (13, 2210960), (16, 1796405), (20, 1437124), (26, 1105480), (29, 991120), (40, 718562), (52, 552740), (58, 495560), (65, 442192), (80, 359281), (104, 276370), (116, 247780), (130, 221096), (145, 198224), (208, 138185), (232, 123890), (260, 110548), (290, 99112), (377, 76240), (464, 61945), (520, 55274), (580, 49556), (754, 38120), (953, 30160), (1040, 27637), (1160, 24778), (1508, 19060), (1885, 15248), (1906, 15080), (2320, 12389), (3016, 9530), (3770, 7624), (3812, 7540), (4765, 6032)]