20703510

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{499}}^1$

素因数の和:973

約数の個数: 48

約数和(自身を含む): 54054000

約数和(自身を除く): 33350490

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 461, 499, 922, 998, 1383, 1497, 2305, 2495, 2766, 2994, 4149, 4491, 4610, 4990, 6915, 7485, 8298, 8982, 13830, 14970, 20745, 22455, 41490, 44910, 230039, 460078, 690117, 1150195, 1380234, 2070351, 2300390, 3450585, 4140702, 6901170, 10351755, 20703510]

約数ペア:

[(1, 20703510), (2, 10351755), (3, 6901170), (5, 4140702), (6, 3450585), (9, 2300390), (10, 2070351), (15, 1380234), (18, 1150195), (30, 690117), (45, 460078), (90, 230039), (461, 44910), (499, 41490), (922, 22455), (998, 20745), (1383, 14970), (1497, 13830), (2305, 8982), (2495, 8298), (2766, 7485), (2994, 6915), (4149, 4990), (4491, 4610)]