155204480

素因数分解:

$2^7\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1231}}^1$

素因数の和:1447

約数の個数: 64

約数和(自身を含む): 373222080

約数和(自身を除く): 218017600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 197, 320, 394, 640, 788, 985, 1231, 1576, 1970, 2462, 3152, 3940, 4924, 6155, 6304, 7880, 9848, 12310, 12608, 15760, 19696, 24620, 25216, 31520, 39392, 49240, 63040, 78784, 98480, 126080, 157568, 196960, 242507, 393920, 485014, 787840, 970028, 1212535, 1940056, 2425070, 3880112, 4850140, 7760224, 9700280, 15520448, 19400560, 31040896, 38801120, 77602240, 155204480]

約数ペア:

[(1, 155204480), (2, 77602240), (4, 38801120), (5, 31040896), (8, 19400560), (10, 15520448), (16, 9700280), (20, 7760224), (32, 4850140), (40, 3880112), (64, 2425070), (80, 1940056), (128, 1212535), (160, 970028), (197, 787840), (320, 485014), (394, 393920), (640, 242507), (788, 196960), (985, 157568), (1231, 126080), (1576, 98480), (1970, 78784), (2462, 63040), (3152, 49240), (3940, 39392), (4924, 31520), (6155, 25216), (6304, 24620), (7880, 19696), (9848, 15760), (12310, 12608)]