64221440

素因数分解:

$2^8\times 5^1\times {\mathrm{131}}^1\times {\mathrm{383}}^1$

素因数の和:535

約数の個数: 72

約数和(自身を含む): 155409408

約数和(自身を除く): 91187968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 131, 160, 256, 262, 320, 383, 524, 640, 655, 766, 1048, 1280, 1310, 1532, 1915, 2096, 2620, 3064, 3830, 4192, 5240, 6128, 7660, 8384, 10480, 12256, 15320, 16768, 20960, 24512, 30640, 33536, 41920, 49024, 50173, 61280, 83840, 98048, 100346, 122560, 167680, 200692, 245120, 250865, 401384, 490240, 501730, 802768, 1003460, 1605536, 2006920, 3211072, 4013840, 6422144, 8027680, 12844288, 16055360, 32110720, 64221440]

約数ペア:

[(1, 64221440), (2, 32110720), (4, 16055360), (5, 12844288), (8, 8027680), (10, 6422144), (16, 4013840), (20, 3211072), (32, 2006920), (40, 1605536), (64, 1003460), (80, 802768), (128, 501730), (131, 490240), (160, 401384), (256, 250865), (262, 245120), (320, 200692), (383, 167680), (524, 122560), (640, 100346), (655, 98048), (766, 83840), (1048, 61280), (1280, 50173), (1310, 49024), (1532, 41920), (1915, 33536), (2096, 30640), (2620, 24512), (3064, 20960), (3830, 16768), (4192, 15320), (5240, 12256), (6128, 10480), (7660, 8384)]