81729960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{52391}}^1$

素因数の和:52418

約数の個数: 64

約数和(自身を含む): 264055680

約数和(自身を除く): 182325720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 52391, 104782, 157173, 209564, 261955, 314346, 419128, 523910, 628692, 681083, 785865, 1047820, 1257384, 1362166, 1571730, 2043249, 2095640, 2724332, 3143460, 3405415, 4086498, 5448664, 6286920, 6810830, 8172996, 10216245, 13621660, 16345992, 20432490, 27243320, 40864980, 81729960]

約数ペア:

[(1, 81729960), (2, 40864980), (3, 27243320), (4, 20432490), (5, 16345992), (6, 13621660), (8, 10216245), (10, 8172996), (12, 6810830), (13, 6286920), (15, 5448664), (20, 4086498), (24, 3405415), (26, 3143460), (30, 2724332), (39, 2095640), (40, 2043249), (52, 1571730), (60, 1362166), (65, 1257384), (78, 1047820), (104, 785865), (120, 681083), (130, 628692), (156, 523910), (195, 419128), (260, 314346), (312, 261955), (390, 209564), (520, 157173), (780, 104782), (1560, 52391)]