20710920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1613}}^1$

素因数の和:1734

約数の個数: 64

約数和(自身を含む): 62752320

約数和(自身を除く): 42041400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 107, 120, 214, 321, 428, 535, 642, 856, 1070, 1284, 1605, 1613, 2140, 2568, 3210, 3226, 4280, 4839, 6420, 6452, 8065, 9678, 12840, 12904, 16130, 19356, 24195, 32260, 38712, 48390, 64520, 96780, 172591, 193560, 345182, 517773, 690364, 862955, 1035546, 1380728, 1725910, 2071092, 2588865, 3451820, 4142184, 5177730, 6903640, 10355460, 20710920]

約数ペア:

[(1, 20710920), (2, 10355460), (3, 6903640), (4, 5177730), (5, 4142184), (6, 3451820), (8, 2588865), (10, 2071092), (12, 1725910), (15, 1380728), (20, 1035546), (24, 862955), (30, 690364), (40, 517773), (60, 345182), (107, 193560), (120, 172591), (214, 96780), (321, 64520), (428, 48390), (535, 38712), (642, 32260), (856, 24195), (1070, 19356), (1284, 16130), (1605, 12904), (1613, 12840), (2140, 9678), (2568, 8065), (3210, 6452), (3226, 6420), (4280, 4839)]