81251730

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{128971}}^1$

素因数の和:128991

約数の個数: 48

約数和(自身を含む): 241435584

約数和(自身を除く): 160183854

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 128971, 257942, 386913, 644855, 773826, 902797, 1160739, 1289710, 1805594, 1934565, 2321478, 2708391, 3869130, 4513985, 5416782, 5803695, 8125173, 9027970, 11607390, 13541955, 16250346, 27083910, 40625865, 81251730]

約数ペア:

[(1, 81251730), (2, 40625865), (3, 27083910), (5, 16250346), (6, 13541955), (7, 11607390), (9, 9027970), (10, 8125173), (14, 5803695), (15, 5416782), (18, 4513985), (21, 3869130), (30, 2708391), (35, 2321478), (42, 1934565), (45, 1805594), (63, 1289710), (70, 1160739), (90, 902797), (105, 773826), (126, 644855), (210, 386913), (315, 257942), (630, 128971)]