397500766

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{641}}^1$

素因数の和:757

約数の個数: 64

約数和(自身を含む): 722203776

約数和(自身を除く): 324703010

約数列:

[1, 2, 13, 17, 23, 26, 34, 46, 61, 122, 221, 299, 391, 442, 598, 641, 782, 793, 1037, 1282, 1403, 1586, 2074, 2806, 5083, 8333, 10166, 10897, 13481, 14743, 16666, 18239, 21794, 23851, 26962, 29486, 36478, 39101, 47702, 78202, 141661, 191659, 250631, 283322, 310063, 383318, 501262, 508313, 620126, 664717, 899323, 1016626, 1329434, 1798646, 3258203, 6516406, 8641321, 11691199, 15288491, 17282642, 23382398, 30576982, 198750383, 397500766]

約数ペア:

[(1, 397500766), (2, 198750383), (13, 30576982), (17, 23382398), (23, 17282642), (26, 15288491), (34, 11691199), (46, 8641321), (61, 6516406), (122, 3258203), (221, 1798646), (299, 1329434), (391, 1016626), (442, 899323), (598, 664717), (641, 620126), (782, 508313), (793, 501262), (1037, 383318), (1282, 310063), (1403, 283322), (1586, 250631), (2074, 191659), (2806, 141661), (5083, 78202), (8333, 47702), (10166, 39101), (10897, 36478), (13481, 29486), (14743, 26962), (16666, 23851), (18239, 21794)]