64720920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{49031}}^1$

素因数の和:49056

約数の個数: 64

約数和(自身を含む): 211818240

約数和(自身を除く): 147097320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 49031, 98062, 147093, 196124, 245155, 294186, 392248, 490310, 539341, 588372, 735465, 980620, 1078682, 1176744, 1470930, 1618023, 1961240, 2157364, 2696705, 2941860, 3236046, 4314728, 5393410, 5883720, 6472092, 8090115, 10786820, 12944184, 16180230, 21573640, 32360460, 64720920]

約数ペア:

[(1, 64720920), (2, 32360460), (3, 21573640), (4, 16180230), (5, 12944184), (6, 10786820), (8, 8090115), (10, 6472092), (11, 5883720), (12, 5393410), (15, 4314728), (20, 3236046), (22, 2941860), (24, 2696705), (30, 2157364), (33, 1961240), (40, 1618023), (44, 1470930), (55, 1176744), (60, 1078682), (66, 980620), (88, 735465), (110, 588372), (120, 539341), (132, 490310), (165, 392248), (220, 294186), (264, 245155), (330, 196124), (440, 147093), (660, 98062), (1320, 49031)]