20908680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1031}}^1$

素因数の和:1071

約数の個数: 96

約数和(自身を含む): 67988160

約数和(自身を除く): 47079480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 169, 195, 260, 312, 338, 390, 507, 520, 676, 780, 845, 1014, 1031, 1352, 1560, 1690, 2028, 2062, 2535, 3093, 3380, 4056, 4124, 5070, 5155, 6186, 6760, 8248, 10140, 10310, 12372, 13403, 15465, 20280, 20620, 24744, 26806, 30930, 40209, 41240, 53612, 61860, 67015, 80418, 107224, 123720, 134030, 160836, 174239, 201045, 268060, 321672, 348478, 402090, 522717, 536120, 696956, 804180, 871195, 1045434, 1393912, 1608360, 1742390, 2090868, 2613585, 3484780, 4181736, 5227170, 6969560, 10454340, 20908680]

約数ペア:

[(1, 20908680), (2, 10454340), (3, 6969560), (4, 5227170), (5, 4181736), (6, 3484780), (8, 2613585), (10, 2090868), (12, 1742390), (13, 1608360), (15, 1393912), (20, 1045434), (24, 871195), (26, 804180), (30, 696956), (39, 536120), (40, 522717), (52, 402090), (60, 348478), (65, 321672), (78, 268060), (104, 201045), (120, 174239), (130, 160836), (156, 134030), (169, 123720), (195, 107224), (260, 80418), (312, 67015), (338, 61860), (390, 53612), (507, 41240), (520, 40209), (676, 30930), (780, 26806), (845, 24744), (1014, 20620), (1031, 20280), (1352, 15465), (1560, 13403), (1690, 12372), (2028, 10310), (2062, 10140), (2535, 8248), (3093, 6760), (3380, 6186), (4056, 5155), (4124, 5070)]