20106840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12889}}^1$

素因数の和:12916

約数の個数: 64

約数和(自身を含む): 64965600

約数和(自身を除く): 44858760

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, 195, 260, 312, 390, 520, 780, 1560, 12889, 25778, 38667, 51556, 64445, 77334, 103112, 128890, 154668, 167557, 193335, 257780, 309336, 335114, 386670, 502671, 515560, 670228, 773340, 837785, 1005342, 1340456, 1546680, 1675570, 2010684, 2513355, 3351140, 4021368, 5026710, 6702280, 10053420, 20106840]

約数ペア:

[(1, 20106840), (2, 10053420), (3, 6702280), (4, 5026710), (5, 4021368), (6, 3351140), (8, 2513355), (10, 2010684), (12, 1675570), (13, 1546680), (15, 1340456), (20, 1005342), (24, 837785), (26, 773340), (30, 670228), (39, 515560), (40, 502671), (52, 386670), (60, 335114), (65, 309336), (78, 257780), (104, 193335), (120, 167557), (130, 154668), (156, 128890), (195, 103112), (260, 77334), (312, 64445), (390, 51556), (520, 38667), (780, 25778), (1560, 12889)]