30889970

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{313}}^1$

素因数の和:530

約数の個数: 32

約数和(自身を含む): 56972160

約数和(自身を除く): 26082190

約数列:

[1, 2, 5, 10, 71, 139, 142, 278, 313, 355, 626, 695, 710, 1390, 1565, 3130, 9869, 19738, 22223, 43507, 44446, 49345, 87014, 98690, 111115, 217535, 222230, 435070, 3088997, 6177994, 15444985, 30889970]

約数ペア:

[(1, 30889970), (2, 15444985), (5, 6177994), (10, 3088997), (71, 435070), (139, 222230), (142, 217535), (278, 111115), (313, 98690), (355, 87014), (626, 49345), (695, 44446), (710, 43507), (1390, 22223), (1565, 19738), (3130, 9869)]