72863440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{70061}}^1$

素因数の和:70087

約数の個数: 40

約数和(自身を含む): 182441448

約数和(自身を除く): 109578008

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 70061, 140122, 280244, 350305, 560488, 700610, 910793, 1120976, 1401220, 1821586, 2802440, 3643172, 4553965, 5604880, 7286344, 9107930, 14572688, 18215860, 36431720, 72863440]

約数ペア:

[(1, 72863440), (2, 36431720), (4, 18215860), (5, 14572688), (8, 9107930), (10, 7286344), (13, 5604880), (16, 4553965), (20, 3643172), (26, 2802440), (40, 1821586), (52, 1401220), (65, 1120976), (80, 910793), (104, 700610), (130, 560488), (208, 350305), (260, 280244), (520, 140122), (1040, 70061)]