68561505

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{311}}^1$

素因数の和:419

約数の個数: 64

約数和(自身を含む): 129392640

約数和(自身を除く): 60831135

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 71, 115, 135, 207, 213, 311, 345, 355, 621, 639, 933, 1035, 1065, 1555, 1633, 1917, 2799, 3105, 3195, 4665, 4899, 7153, 8165, 8397, 9585, 13995, 14697, 21459, 22081, 24495, 35765, 41985, 44091, 64377, 66243, 73485, 107295, 110405, 193131, 198729, 220455, 321885, 331215, 507863, 596187, 965655, 993645, 1523589, 2539315, 2980935, 4570767, 7617945, 13712301, 22853835, 68561505]

約数ペア:

[(1, 68561505), (3, 22853835), (5, 13712301), (9, 7617945), (15, 4570767), (23, 2980935), (27, 2539315), (45, 1523589), (69, 993645), (71, 965655), (115, 596187), (135, 507863), (207, 331215), (213, 321885), (311, 220455), (345, 198729), (355, 193131), (621, 110405), (639, 107295), (933, 73485), (1035, 66243), (1065, 64377), (1555, 44091), (1633, 41985), (1917, 35765), (2799, 24495), (3105, 22081), (3195, 21459), (4665, 14697), (4899, 13995), (7153, 9585), (8165, 8397)]