20291474

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:155

約数の個数: 64

約数和(自身を含む): 39191040

約数和(自身を除く): 18899566

約数列:

[1, 2, 7, 14, 23, 29, 41, 46, 53, 58, 82, 106, 161, 203, 287, 322, 371, 406, 574, 667, 742, 943, 1189, 1219, 1334, 1537, 1886, 2173, 2378, 2438, 3074, 4346, 4669, 6601, 8323, 8533, 9338, 10759, 13202, 15211, 16646, 17066, 21518, 27347, 30422, 35351, 49979, 54694, 63017, 70702, 99958, 126034, 191429, 247457, 349853, 382858, 441119, 494914, 699706, 882238, 1449391, 2898782, 10145737, 20291474]

約数ペア:

[(1, 20291474), (2, 10145737), (7, 2898782), (14, 1449391), (23, 882238), (29, 699706), (41, 494914), (46, 441119), (53, 382858), (58, 349853), (82, 247457), (106, 191429), (161, 126034), (203, 99958), (287, 70702), (322, 63017), (371, 54694), (406, 49979), (574, 35351), (667, 30422), (742, 27347), (943, 21518), (1189, 17066), (1219, 16646), (1334, 15211), (1537, 13202), (1886, 10759), (2173, 9338), (2378, 8533), (2438, 8323), (3074, 6601), (4346, 4669)]