20354280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2389}}^1$

素因数の和:2474

約数の個数: 64

約数和(自身を含む): 61948800

約数和(自身を除く): 41594520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2389, 2840, 4260, 4778, 7167, 8520, 9556, 11945, 14334, 19112, 23890, 28668, 35835, 47780, 57336, 71670, 95560, 143340, 169619, 286680, 339238, 508857, 678476, 848095, 1017714, 1356952, 1696190, 2035428, 2544285, 3392380, 4070856, 5088570, 6784760, 10177140, 20354280]

約数ペア:

[(1, 20354280), (2, 10177140), (3, 6784760), (4, 5088570), (5, 4070856), (6, 3392380), (8, 2544285), (10, 2035428), (12, 1696190), (15, 1356952), (20, 1017714), (24, 848095), (30, 678476), (40, 508857), (60, 339238), (71, 286680), (120, 169619), (142, 143340), (213, 95560), (284, 71670), (355, 57336), (426, 47780), (568, 35835), (710, 28668), (852, 23890), (1065, 19112), (1420, 14334), (1704, 11945), (2130, 9556), (2389, 8520), (2840, 7167), (4260, 4778)]