72503990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:345

約数の個数: 64

約数和(自身を含む): 146990592

約数和(自身を除く): 74486602

約数列:

[1, 2, 5, 10, 13, 26, 41, 61, 65, 82, 122, 130, 205, 223, 305, 410, 446, 533, 610, 793, 1066, 1115, 1586, 2230, 2501, 2665, 2899, 3965, 5002, 5330, 5798, 7930, 9143, 12505, 13603, 14495, 18286, 25010, 27206, 28990, 32513, 45715, 65026, 68015, 91430, 118859, 136030, 162565, 176839, 237718, 325130, 353678, 557723, 594295, 884195, 1115446, 1188590, 1768390, 2788615, 5577230, 7250399, 14500798, 36251995, 72503990]

約数ペア:

[(1, 72503990), (2, 36251995), (5, 14500798), (10, 7250399), (13, 5577230), (26, 2788615), (41, 1768390), (61, 1188590), (65, 1115446), (82, 884195), (122, 594295), (130, 557723), (205, 353678), (223, 325130), (305, 237718), (410, 176839), (446, 162565), (533, 136030), (610, 118859), (793, 91430), (1066, 68015), (1115, 65026), (1586, 45715), (2230, 32513), (2501, 28990), (2665, 27206), (2899, 25010), (3965, 18286), (5002, 14495), (5330, 13603), (5798, 12505), (7930, 9143)]