18254220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{991}}^1$

素因数の和:1310

約数の個数: 48

約数和(自身を含む): 51330048

約数和(自身を除く): 33075828

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 307, 614, 921, 991, 1228, 1535, 1842, 1982, 2973, 3070, 3684, 3964, 4605, 4955, 5946, 6140, 9210, 9910, 11892, 14865, 18420, 19820, 29730, 59460, 304237, 608474, 912711, 1216948, 1521185, 1825422, 3042370, 3650844, 4563555, 6084740, 9127110, 18254220]

約数ペア:

[(1, 18254220), (2, 9127110), (3, 6084740), (4, 4563555), (5, 3650844), (6, 3042370), (10, 1825422), (12, 1521185), (15, 1216948), (20, 912711), (30, 608474), (60, 304237), (307, 59460), (614, 29730), (921, 19820), (991, 18420), (1228, 14865), (1535, 11892), (1842, 9910), (1982, 9210), (2973, 6140), (3070, 5946), (3684, 4955), (3964, 4605)]