645535568

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{751}}^1\times {\mathrm{1733}}^1$

素因数の和:2523

約数の個数: 40

約数和(自身を含む): 1293536256

約数和(自身を除く): 648000688

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 751, 1502, 1733, 3004, 3466, 6008, 6932, 12016, 13864, 23281, 27728, 46562, 53723, 93124, 107446, 186248, 214892, 372496, 429784, 859568, 1301483, 2602966, 5205932, 10411864, 20823728, 40345973, 80691946, 161383892, 322767784, 645535568]

約数ペア:

[(1, 645535568), (2, 322767784), (4, 161383892), (8, 80691946), (16, 40345973), (31, 20823728), (62, 10411864), (124, 5205932), (248, 2602966), (496, 1301483), (751, 859568), (1502, 429784), (1733, 372496), (3004, 214892), (3466, 186248), (6008, 107446), (6932, 93124), (12016, 53723), (13864, 46562), (23281, 27728)]