20439516

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{571}}^1$

素因数の和:754

約数の個数: 48

約数和(自身を含む): 50610560

約数和(自身を除く): 30171044

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 157, 228, 314, 471, 571, 628, 942, 1142, 1713, 1884, 2284, 2983, 3426, 5966, 6852, 8949, 10849, 11932, 17898, 21698, 32547, 35796, 43396, 65094, 89647, 130188, 179294, 268941, 358588, 537882, 1075764, 1703293, 3406586, 5109879, 6813172, 10219758, 20439516]

約数ペア:

[(1, 20439516), (2, 10219758), (3, 6813172), (4, 5109879), (6, 3406586), (12, 1703293), (19, 1075764), (38, 537882), (57, 358588), (76, 268941), (114, 179294), (157, 130188), (228, 89647), (314, 65094), (471, 43396), (571, 35796), (628, 32547), (942, 21698), (1142, 17898), (1713, 11932), (1884, 10849), (2284, 8949), (2983, 6852), (3426, 5966)]