86811920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{6421}}^1$

素因数の和:6460

約数の個数: 60

約数和(自身を含む): 218592036

約数和(自身を除く): 131780116

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1352, 1690, 2704, 3380, 6421, 6760, 12842, 13520, 25684, 32105, 51368, 64210, 83473, 102736, 128420, 166946, 256840, 333892, 417365, 513680, 667784, 834730, 1085149, 1335568, 1669460, 2170298, 3338920, 4340596, 5425745, 6677840, 8681192, 10851490, 17362384, 21702980, 43405960, 86811920]

約数ペア:

[(1, 86811920), (2, 43405960), (4, 21702980), (5, 17362384), (8, 10851490), (10, 8681192), (13, 6677840), (16, 5425745), (20, 4340596), (26, 3338920), (40, 2170298), (52, 1669460), (65, 1335568), (80, 1085149), (104, 834730), (130, 667784), (169, 513680), (208, 417365), (260, 333892), (338, 256840), (520, 166946), (676, 128420), (845, 102736), (1040, 83473), (1352, 64210), (1690, 51368), (2704, 32105), (3380, 25684), (6421, 13520), (6760, 12842)]