101920640

素因数分解:

$2^7\times 5^1\times {\mathrm{163}}^1\times {\mathrm{977}}^1$

素因数の和:1159

約数の個数: 64

約数和(自身を含む): 245399760

約数和(自身を除く): 143479120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 163, 320, 326, 640, 652, 815, 977, 1304, 1630, 1954, 2608, 3260, 3908, 4885, 5216, 6520, 7816, 9770, 10432, 13040, 15632, 19540, 20864, 26080, 31264, 39080, 52160, 62528, 78160, 104320, 125056, 156320, 159251, 312640, 318502, 625280, 637004, 796255, 1274008, 1592510, 2548016, 3185020, 5096032, 6370040, 10192064, 12740080, 20384128, 25480160, 50960320, 101920640]

約数ペア:

[(1, 101920640), (2, 50960320), (4, 25480160), (5, 20384128), (8, 12740080), (10, 10192064), (16, 6370040), (20, 5096032), (32, 3185020), (40, 2548016), (64, 1592510), (80, 1274008), (128, 796255), (160, 637004), (163, 625280), (320, 318502), (326, 312640), (640, 159251), (652, 156320), (815, 125056), (977, 104320), (1304, 78160), (1630, 62528), (1954, 52160), (2608, 39080), (3260, 31264), (3908, 26080), (4885, 20864), (5216, 19540), (6520, 15632), (7816, 13040), (9770, 10432)]