20821560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{167}}^1\times {\mathrm{1039}}^1$

素因数の和:1220

約数の個数: 64

約数和(自身を含む): 62899200

約数和(自身を除く): 42077640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 167, 334, 501, 668, 835, 1002, 1039, 1336, 1670, 2004, 2078, 2505, 3117, 3340, 4008, 4156, 5010, 5195, 6234, 6680, 8312, 10020, 10390, 12468, 15585, 20040, 20780, 24936, 31170, 41560, 62340, 124680, 173513, 347026, 520539, 694052, 867565, 1041078, 1388104, 1735130, 2082156, 2602695, 3470260, 4164312, 5205390, 6940520, 10410780, 20821560]

約数ペア:

[(1, 20821560), (2, 10410780), (3, 6940520), (4, 5205390), (5, 4164312), (6, 3470260), (8, 2602695), (10, 2082156), (12, 1735130), (15, 1388104), (20, 1041078), (24, 867565), (30, 694052), (40, 520539), (60, 347026), (120, 173513), (167, 124680), (334, 62340), (501, 41560), (668, 31170), (835, 24936), (1002, 20780), (1039, 20040), (1336, 15585), (1670, 12468), (2004, 10390), (2078, 10020), (2505, 8312), (3117, 6680), (3340, 6234), (4008, 5195), (4156, 5010)]