64441280

素因数分解:

$2^6\times 5^1\times {\mathrm{277}}^1\times {\mathrm{727}}^1$

素因数の和:1021

約数の個数: 56

約数和(自身を含む): 154216608

約数和(自身を除く): 89775328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 277, 320, 554, 727, 1108, 1385, 1454, 2216, 2770, 2908, 3635, 4432, 5540, 5816, 7270, 8864, 11080, 11632, 14540, 17728, 22160, 23264, 29080, 44320, 46528, 58160, 88640, 116320, 201379, 232640, 402758, 805516, 1006895, 1611032, 2013790, 3222064, 4027580, 6444128, 8055160, 12888256, 16110320, 32220640, 64441280]

約数ペア:

[(1, 64441280), (2, 32220640), (4, 16110320), (5, 12888256), (8, 8055160), (10, 6444128), (16, 4027580), (20, 3222064), (32, 2013790), (40, 1611032), (64, 1006895), (80, 805516), (160, 402758), (277, 232640), (320, 201379), (554, 116320), (727, 88640), (1108, 58160), (1385, 46528), (1454, 44320), (2216, 29080), (2770, 23264), (2908, 22160), (3635, 17728), (4432, 14540), (5540, 11632), (5816, 11080), (7270, 8864)]