31889320

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1$

素因数の和:314

約数の個数: 64

約数和(自身を含む): 74272320

約数和(自身を除く): 42383000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 73, 134, 146, 163, 268, 292, 326, 335, 365, 536, 584, 652, 670, 730, 815, 1304, 1340, 1460, 1630, 2680, 2920, 3260, 4891, 6520, 9782, 10921, 11899, 19564, 21842, 23798, 24455, 39128, 43684, 47596, 48910, 54605, 59495, 87368, 95192, 97820, 109210, 118990, 195640, 218420, 237980, 436840, 475960, 797233, 1594466, 3188932, 3986165, 6377864, 7972330, 15944660, 31889320]

約数ペア:

[(1, 31889320), (2, 15944660), (4, 7972330), (5, 6377864), (8, 3986165), (10, 3188932), (20, 1594466), (40, 797233), (67, 475960), (73, 436840), (134, 237980), (146, 218420), (163, 195640), (268, 118990), (292, 109210), (326, 97820), (335, 95192), (365, 87368), (536, 59495), (584, 54605), (652, 48910), (670, 47596), (730, 43684), (815, 39128), (1304, 24455), (1340, 23798), (1460, 21842), (1630, 19564), (2680, 11899), (2920, 10921), (3260, 9782), (4891, 6520)]