261664

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:77

約数の個数: 48

約数和(自身を含む): 603288

約数和(自身を除く): 341624

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 37, 52, 68, 74, 104, 136, 148, 208, 221, 272, 296, 416, 442, 481, 544, 592, 629, 884, 962, 1184, 1258, 1768, 1924, 2516, 3536, 3848, 5032, 7072, 7696, 8177, 10064, 15392, 16354, 20128, 32708, 65416, 130832, 261664]

約数ペア:

[(1, 261664), (2, 130832), (4, 65416), (8, 32708), (13, 20128), (16, 16354), (17, 15392), (26, 10064), (32, 8177), (34, 7696), (37, 7072), (52, 5032), (68, 3848), (74, 3536), (104, 2516), (136, 1924), (148, 1768), (208, 1258), (221, 1184), (272, 962), (296, 884), (416, 629), (442, 592), (481, 544)]