656786260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{1019}}^1$

素因数の和:1145

約数の個数: 96

約数和(自身を含む): 1549779840

約数和(自身を除く): 892993580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 67, 74, 130, 134, 148, 185, 260, 268, 335, 370, 481, 670, 740, 871, 962, 1019, 1340, 1742, 1924, 2038, 2405, 2479, 3484, 4076, 4355, 4810, 4958, 5095, 8710, 9620, 9916, 10190, 12395, 13247, 17420, 20380, 24790, 26494, 32227, 37703, 49580, 52988, 64454, 66235, 68273, 75406, 128908, 132470, 136546, 150812, 161135, 188515, 264940, 273092, 322270, 341365, 377030, 490139, 644540, 682730, 754060, 887549, 980278, 1365460, 1775098, 1960556, 2450695, 2526101, 3550196, 4437745, 4901390, 5052202, 8875490, 9802780, 10104404, 12630505, 17750980, 25261010, 32839313, 50522020, 65678626, 131357252, 164196565, 328393130, 656786260]

約数ペア:

[(1, 656786260), (2, 328393130), (4, 164196565), (5, 131357252), (10, 65678626), (13, 50522020), (20, 32839313), (26, 25261010), (37, 17750980), (52, 12630505), (65, 10104404), (67, 9802780), (74, 8875490), (130, 5052202), (134, 4901390), (148, 4437745), (185, 3550196), (260, 2526101), (268, 2450695), (335, 1960556), (370, 1775098), (481, 1365460), (670, 980278), (740, 887549), (871, 754060), (962, 682730), (1019, 644540), (1340, 490139), (1742, 377030), (1924, 341365), (2038, 322270), (2405, 273092), (2479, 264940), (3484, 188515), (4076, 161135), (4355, 150812), (4810, 136546), (4958, 132470), (5095, 128908), (8710, 75406), (9620, 68273), (9916, 66235), (10190, 64454), (12395, 52988), (13247, 49580), (17420, 37703), (20380, 32227), (24790, 26494)]