30420

素因数分解:

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

素因数の和:41

約数の個数: 54

約数和(自身を含む): 99918

約数和(自身を除く): 69498

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, 676, 780, 845, 1014, 1170, 1521, 1690, 2028, 2340, 2535, 3042, 3380, 5070, 6084, 7605, 10140, 15210, 30420]

約数ペア:

[(1, 30420), (2, 15210), (3, 10140), (4, 7605), (5, 6084), (6, 5070), (9, 3380), (10, 3042), (12, 2535), (13, 2340), (15, 2028), (18, 1690), (20, 1521), (26, 1170), (30, 1014), (36, 845), (39, 780), (45, 676), (52, 585), (60, 507), (65, 468), (78, 390), (90, 338), (117, 260), (130, 234), (156, 195), (169, 180)]