20660460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:227

約数の個数: 96

約数和(自身を含む): 60419520

約数和(自身を除く): 39759060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 73, 89, 106, 146, 159, 178, 212, 219, 265, 267, 292, 318, 356, 365, 438, 445, 530, 534, 636, 730, 795, 876, 890, 1060, 1068, 1095, 1335, 1460, 1590, 1780, 2190, 2670, 3180, 3869, 4380, 4717, 5340, 6497, 7738, 9434, 11607, 12994, 14151, 15476, 18868, 19345, 19491, 23214, 23585, 25988, 28302, 32485, 38690, 38982, 46428, 47170, 56604, 58035, 64970, 70755, 77380, 77964, 94340, 97455, 116070, 129940, 141510, 194910, 232140, 283020, 344341, 389820, 688682, 1033023, 1377364, 1721705, 2066046, 3443410, 4132092, 5165115, 6886820, 10330230, 20660460]

約数ペア:

[(1, 20660460), (2, 10330230), (3, 6886820), (4, 5165115), (5, 4132092), (6, 3443410), (10, 2066046), (12, 1721705), (15, 1377364), (20, 1033023), (30, 688682), (53, 389820), (60, 344341), (73, 283020), (89, 232140), (106, 194910), (146, 141510), (159, 129940), (178, 116070), (212, 97455), (219, 94340), (265, 77964), (267, 77380), (292, 70755), (318, 64970), (356, 58035), (365, 56604), (438, 47170), (445, 46428), (530, 38982), (534, 38690), (636, 32485), (730, 28302), (795, 25988), (876, 23585), (890, 23214), (1060, 19491), (1068, 19345), (1095, 18868), (1335, 15476), (1460, 14151), (1590, 12994), (1780, 11607), (2190, 9434), (2670, 7738), (3180, 6497), (3869, 5340), (4380, 4717)]