71989645

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:310

約数の個数: 64

約数和(自身を含む): 115831296

約数和(自身を除く): 43841651

約数列:

[1, 5, 7, 13, 17, 35, 41, 65, 85, 91, 119, 205, 221, 227, 287, 455, 533, 595, 697, 1105, 1135, 1435, 1547, 1589, 2665, 2951, 3485, 3731, 3859, 4879, 7735, 7945, 9061, 9307, 14755, 18655, 19295, 20657, 24395, 27013, 45305, 46535, 50167, 63427, 65149, 103285, 120991, 135065, 158219, 250835, 317135, 325745, 351169, 604955, 791095, 846937, 1107533, 1755845, 2056847, 4234685, 5537665, 10284235, 14397929, 71989645]

約数ペア:

[(1, 71989645), (5, 14397929), (7, 10284235), (13, 5537665), (17, 4234685), (35, 2056847), (41, 1755845), (65, 1107533), (85, 846937), (91, 791095), (119, 604955), (205, 351169), (221, 325745), (227, 317135), (287, 250835), (455, 158219), (533, 135065), (595, 120991), (697, 103285), (1105, 65149), (1135, 63427), (1435, 50167), (1547, 46535), (1589, 45305), (2665, 27013), (2951, 24395), (3485, 20657), (3731, 19295), (3859, 18655), (4879, 14755), (7735, 9307), (7945, 9061)]