697942780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{6733}}^1$

素因数の和:6886

約数の個数: 48

約数和(自身を含む): 1506907584

約数和(自身を除く): 808964804

約数列:

[1, 2, 4, 5, 10, 20, 71, 73, 142, 146, 284, 292, 355, 365, 710, 730, 1420, 1460, 5183, 6733, 10366, 13466, 20732, 25915, 26932, 33665, 51830, 67330, 103660, 134660, 478043, 491509, 956086, 983018, 1912172, 1966036, 2390215, 2457545, 4780430, 4915090, 9560860, 9830180, 34897139, 69794278, 139588556, 174485695, 348971390, 697942780]

約数ペア:

[(1, 697942780), (2, 348971390), (4, 174485695), (5, 139588556), (10, 69794278), (20, 34897139), (71, 9830180), (73, 9560860), (142, 4915090), (146, 4780430), (284, 2457545), (292, 2390215), (355, 1966036), (365, 1912172), (710, 983018), (730, 956086), (1420, 491509), (1460, 478043), (5183, 134660), (6733, 103660), (10366, 67330), (13466, 51830), (20732, 33665), (25915, 26932)]