154219420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{991}}^1$

素因数の和:1282

約数の個数: 48

約数和(自身を含む): 335978496

約数和(自身を除く): 181759076

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 251, 310, 502, 620, 991, 1004, 1255, 1982, 2510, 3964, 4955, 5020, 7781, 9910, 15562, 19820, 30721, 31124, 38905, 61442, 77810, 122884, 153605, 155620, 248741, 307210, 497482, 614420, 994964, 1243705, 2487410, 4974820, 7710971, 15421942, 30843884, 38554855, 77109710, 154219420]

約数ペア:

[(1, 154219420), (2, 77109710), (4, 38554855), (5, 30843884), (10, 15421942), (20, 7710971), (31, 4974820), (62, 2487410), (124, 1243705), (155, 994964), (251, 614420), (310, 497482), (502, 307210), (620, 248741), (991, 155620), (1004, 153605), (1255, 122884), (1982, 77810), (2510, 61442), (3964, 38905), (4955, 31124), (5020, 30721), (7781, 19820), (9910, 15562)]