20641452

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{431}}^1$

素因数の和:758

約数の個数: 48

約数和(自身を含む): 52157952

約数和(自身を除く): 31516500

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 307, 431, 614, 862, 921, 1228, 1293, 1724, 1842, 2586, 3684, 3991, 5172, 5603, 7982, 11206, 11973, 15964, 16809, 22412, 23946, 33618, 47892, 67236, 132317, 264634, 396951, 529268, 793902, 1587804, 1720121, 3440242, 5160363, 6880484, 10320726, 20641452]

約数ペア:

[(1, 20641452), (2, 10320726), (3, 6880484), (4, 5160363), (6, 3440242), (12, 1720121), (13, 1587804), (26, 793902), (39, 529268), (52, 396951), (78, 264634), (156, 132317), (307, 67236), (431, 47892), (614, 33618), (862, 23946), (921, 22412), (1228, 16809), (1293, 15964), (1724, 11973), (1842, 11206), (2586, 7982), (3684, 5603), (3991, 5172)]