18829980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{619}}^1$

素因数の和:660

約数の個数: 108

約数和(自身を含む): 61949160

約数和(自身を除く): 43119180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 169, 180, 195, 234, 260, 338, 390, 468, 507, 585, 619, 676, 780, 845, 1014, 1170, 1238, 1521, 1690, 1857, 2028, 2340, 2476, 2535, 3042, 3095, 3380, 3714, 5070, 5571, 6084, 6190, 7428, 7605, 8047, 9285, 10140, 11142, 12380, 15210, 16094, 18570, 22284, 24141, 27855, 30420, 32188, 37140, 40235, 48282, 55710, 72423, 80470, 96564, 104611, 111420, 120705, 144846, 160940, 209222, 241410, 289692, 313833, 362115, 418444, 482820, 523055, 627666, 724230, 941499, 1046110, 1255332, 1448460, 1569165, 1882998, 2092220, 3138330, 3765996, 4707495, 6276660, 9414990, 18829980]

約数ペア:

[(1, 18829980), (2, 9414990), (3, 6276660), (4, 4707495), (5, 3765996), (6, 3138330), (9, 2092220), (10, 1882998), (12, 1569165), (13, 1448460), (15, 1255332), (18, 1046110), (20, 941499), (26, 724230), (30, 627666), (36, 523055), (39, 482820), (45, 418444), (52, 362115), (60, 313833), (65, 289692), (78, 241410), (90, 209222), (117, 160940), (130, 144846), (156, 120705), (169, 111420), (180, 104611), (195, 96564), (234, 80470), (260, 72423), (338, 55710), (390, 48282), (468, 40235), (507, 37140), (585, 32188), (619, 30420), (676, 27855), (780, 24141), (845, 22284), (1014, 18570), (1170, 16094), (1238, 15210), (1521, 12380), (1690, 11142), (1857, 10140), (2028, 9285), (2340, 8047), (2476, 7605), (2535, 7428), (3042, 6190), (3095, 6084), (3380, 5571), (3714, 5070)]