28720510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{853}}^1$

素因数の和:917

約数の個数: 64

約数和(自身を含む): 65423232

約数和(自身を除く): 36702722

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 37, 65, 70, 74, 91, 130, 182, 185, 259, 370, 455, 481, 518, 853, 910, 962, 1295, 1706, 2405, 2590, 3367, 4265, 4810, 5971, 6734, 8530, 11089, 11942, 16835, 22178, 29855, 31561, 33670, 55445, 59710, 63122, 77623, 110890, 155246, 157805, 220927, 315610, 388115, 410293, 441854, 776230, 820586, 1104635, 2051465, 2209270, 2872051, 4102930, 5744102, 14360255, 28720510]

約数ペア:

[(1, 28720510), (2, 14360255), (5, 5744102), (7, 4102930), (10, 2872051), (13, 2209270), (14, 2051465), (26, 1104635), (35, 820586), (37, 776230), (65, 441854), (70, 410293), (74, 388115), (91, 315610), (130, 220927), (182, 157805), (185, 155246), (259, 110890), (370, 77623), (455, 63122), (481, 59710), (518, 55445), (853, 33670), (910, 31561), (962, 29855), (1295, 22178), (1706, 16835), (2405, 11942), (2590, 11089), (3367, 8530), (4265, 6734), (4810, 5971)]