210930460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{15307}}^1$

素因数の和:15382

約数の個数: 48

約数和(自身を含む): 486059616

約数和(自身を除く): 275129156

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 1060, 1378, 2756, 3445, 6890, 13780, 15307, 30614, 61228, 76535, 153070, 198991, 306140, 397982, 795964, 811271, 994955, 1622542, 1989910, 3245084, 3979820, 4056355, 8112710, 10546523, 16225420, 21093046, 42186092, 52732615, 105465230, 210930460]

約数ペア:

[(1, 210930460), (2, 105465230), (4, 52732615), (5, 42186092), (10, 21093046), (13, 16225420), (20, 10546523), (26, 8112710), (52, 4056355), (53, 3979820), (65, 3245084), (106, 1989910), (130, 1622542), (212, 994955), (260, 811271), (265, 795964), (530, 397982), (689, 306140), (1060, 198991), (1378, 153070), (2756, 76535), (3445, 61228), (6890, 30614), (13780, 15307)]