64257280

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2953}}^1$

素因数の和:2991

約数の個数: 72

約数和(自身を含む): 163025352

約数和(自身を除く): 98768072

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 544, 640, 680, 1088, 1280, 1360, 2176, 2720, 2953, 4352, 5440, 5906, 10880, 11812, 14765, 21760, 23624, 29530, 47248, 50201, 59060, 94496, 100402, 118120, 188992, 200804, 236240, 251005, 377984, 401608, 472480, 502010, 755968, 803216, 944960, 1004020, 1606432, 1889920, 2008040, 3212864, 3779840, 4016080, 6425728, 8032160, 12851456, 16064320, 32128640, 64257280]

約数ペア:

[(1, 64257280), (2, 32128640), (4, 16064320), (5, 12851456), (8, 8032160), (10, 6425728), (16, 4016080), (17, 3779840), (20, 3212864), (32, 2008040), (34, 1889920), (40, 1606432), (64, 1004020), (68, 944960), (80, 803216), (85, 755968), (128, 502010), (136, 472480), (160, 401608), (170, 377984), (256, 251005), (272, 236240), (320, 200804), (340, 188992), (544, 118120), (640, 100402), (680, 94496), (1088, 59060), (1280, 50201), (1360, 47248), (2176, 29530), (2720, 23624), (2953, 21760), (4352, 14765), (5440, 11812), (5906, 10880)]