20357520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{313}}^1$

素因数の和:600

約数の個数: 80

約数和(自身を含む): 63543552

約数和(自身を除く): 43186032

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 271, 313, 542, 626, 813, 939, 1084, 1252, 1355, 1565, 1626, 1878, 2168, 2504, 2710, 3130, 3252, 3756, 4065, 4336, 4695, 5008, 5420, 6260, 6504, 7512, 8130, 9390, 10840, 12520, 13008, 15024, 16260, 18780, 21680, 25040, 32520, 37560, 65040, 75120, 84823, 169646, 254469, 339292, 424115, 508938, 678584, 848230, 1017876, 1272345, 1357168, 1696460, 2035752, 2544690, 3392920, 4071504, 5089380, 6785840, 10178760, 20357520]

約数ペア:

[(1, 20357520), (2, 10178760), (3, 6785840), (4, 5089380), (5, 4071504), (6, 3392920), (8, 2544690), (10, 2035752), (12, 1696460), (15, 1357168), (16, 1272345), (20, 1017876), (24, 848230), (30, 678584), (40, 508938), (48, 424115), (60, 339292), (80, 254469), (120, 169646), (240, 84823), (271, 75120), (313, 65040), (542, 37560), (626, 32520), (813, 25040), (939, 21680), (1084, 18780), (1252, 16260), (1355, 15024), (1565, 13008), (1626, 12520), (1878, 10840), (2168, 9390), (2504, 8130), (2710, 7512), (3130, 6504), (3252, 6260), (3756, 5420), (4065, 5008), (4336, 4695)]