72908420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{4597}}^1$

素因数の和:4680

約数の個数: 48

約数和(自身を含む): 167624688

約数和(自身を除く): 94716268

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 3172, 3965, 4597, 7930, 9194, 15860, 18388, 22985, 45970, 59761, 91940, 119522, 239044, 280417, 298805, 560834, 597610, 1121668, 1195220, 1402085, 2804170, 3645421, 5608340, 7290842, 14581684, 18227105, 36454210, 72908420]

約数ペア:

[(1, 72908420), (2, 36454210), (4, 18227105), (5, 14581684), (10, 7290842), (13, 5608340), (20, 3645421), (26, 2804170), (52, 1402085), (61, 1195220), (65, 1121668), (122, 597610), (130, 560834), (244, 298805), (260, 280417), (305, 239044), (610, 119522), (793, 91940), (1220, 59761), (1586, 45970), (3172, 22985), (3965, 18388), (4597, 15860), (7930, 9194)]