30991720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{26717}}^1$

素因数の和:26757

約数の個数: 32

約数和(自身を含む): 72138600

約数和(自身を除く): 41146880

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 26717, 53434, 106868, 133585, 213736, 267170, 534340, 774793, 1068680, 1549586, 3099172, 3873965, 6198344, 7747930, 15495860, 30991720]

約数ペア:

[(1, 30991720), (2, 15495860), (4, 7747930), (5, 6198344), (8, 3873965), (10, 3099172), (20, 1549586), (29, 1068680), (40, 774793), (58, 534340), (116, 267170), (145, 213736), (232, 133585), (290, 106868), (580, 53434), (1160, 26717)]