64989440

素因数分解:

$2^8\times 5^1\times {\mathrm{50773}}^1$

素因数の和:50794

約数の個数: 36

約数和(自身を含む): 155673084

約数和(自身を除く): 90683644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 50773, 101546, 203092, 253865, 406184, 507730, 812368, 1015460, 1624736, 2030920, 3249472, 4061840, 6498944, 8123680, 12997888, 16247360, 32494720, 64989440]

約数ペア:

[(1, 64989440), (2, 32494720), (4, 16247360), (5, 12997888), (8, 8123680), (10, 6498944), (16, 4061840), (20, 3249472), (32, 2030920), (40, 1624736), (64, 1015460), (80, 812368), (128, 507730), (160, 406184), (256, 253865), (320, 203092), (640, 101546), (1280, 50773)]