31325320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{563}}^1$

素因数の和:694

約数の個数: 64

約数和(自身を含む): 76749120

約数和(自身を除く): 45423800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 107, 130, 214, 260, 428, 520, 535, 563, 856, 1070, 1126, 1391, 2140, 2252, 2782, 2815, 4280, 4504, 5564, 5630, 6955, 7319, 11128, 11260, 13910, 14638, 22520, 27820, 29276, 36595, 55640, 58552, 60241, 73190, 120482, 146380, 240964, 292760, 301205, 481928, 602410, 783133, 1204820, 1566266, 2409640, 3132532, 3915665, 6265064, 7831330, 15662660, 31325320]

約数ペア:

[(1, 31325320), (2, 15662660), (4, 7831330), (5, 6265064), (8, 3915665), (10, 3132532), (13, 2409640), (20, 1566266), (26, 1204820), (40, 783133), (52, 602410), (65, 481928), (104, 301205), (107, 292760), (130, 240964), (214, 146380), (260, 120482), (428, 73190), (520, 60241), (535, 58552), (563, 55640), (856, 36595), (1070, 29276), (1126, 27820), (1391, 22520), (2140, 14638), (2252, 13910), (2782, 11260), (2815, 11128), (4280, 7319), (4504, 6955), (5564, 5630)]