278935490

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{71339}}^1$

素因数の和:71386

約数の個数: 32

約数和(自身を含む): 554739840

約数和(自身を除く): 275804350

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 170, 230, 391, 782, 1955, 3910, 71339, 142678, 356695, 713390, 1212763, 1640797, 2425526, 3281594, 6063815, 8203985, 12127630, 16407970, 27893549, 55787098, 139467745, 278935490]

約数ペア:

[(1, 278935490), (2, 139467745), (5, 55787098), (10, 27893549), (17, 16407970), (23, 12127630), (34, 8203985), (46, 6063815), (85, 3281594), (115, 2425526), (170, 1640797), (230, 1212763), (391, 713390), (782, 356695), (1955, 142678), (3910, 71339)]