20845320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{641}}^1$

素因数の和:926

約数の個数: 64

約数和(自身を含む): 62864640

約数和(自身を除く): 42019320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 271, 542, 641, 813, 1084, 1282, 1355, 1626, 1923, 2168, 2564, 2710, 3205, 3252, 3846, 4065, 5128, 5420, 6410, 6504, 7692, 8130, 9615, 10840, 12820, 15384, 16260, 19230, 25640, 32520, 38460, 76920, 173711, 347422, 521133, 694844, 868555, 1042266, 1389688, 1737110, 2084532, 2605665, 3474220, 4169064, 5211330, 6948440, 10422660, 20845320]

約数ペア:

[(1, 20845320), (2, 10422660), (3, 6948440), (4, 5211330), (5, 4169064), (6, 3474220), (8, 2605665), (10, 2084532), (12, 1737110), (15, 1389688), (20, 1042266), (24, 868555), (30, 694844), (40, 521133), (60, 347422), (120, 173711), (271, 76920), (542, 38460), (641, 32520), (813, 25640), (1084, 19230), (1282, 16260), (1355, 15384), (1626, 12820), (1923, 10840), (2168, 9615), (2564, 8130), (2710, 7692), (3205, 6504), (3252, 6410), (3846, 5420), (4065, 5128)]