18145304

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 36850320

約数和(自身を除く): 18705016

約数列:

[1, 2, 4, 8, 19, 38, 61, 76, 103, 122, 152, 206, 244, 361, 412, 488, 722, 824, 1159, 1444, 1957, 2318, 2888, 3914, 4636, 6283, 7828, 9272, 12566, 15656, 22021, 25132, 37183, 44042, 50264, 74366, 88084, 119377, 148732, 176168, 238754, 297464, 477508, 955016, 2268163, 4536326, 9072652, 18145304]

約数ペア:

[(1, 18145304), (2, 9072652), (4, 4536326), (8, 2268163), (19, 955016), (38, 477508), (61, 297464), (76, 238754), (103, 176168), (122, 148732), (152, 119377), (206, 88084), (244, 74366), (361, 50264), (412, 44042), (488, 37183), (722, 25132), (824, 22021), (1159, 15656), (1444, 12566), (1957, 9272), (2318, 7828), (2888, 6283), (3914, 4636)]