18988920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{52747}}^1$

素因数の和:52764

約数の個数: 48

約数和(自身を含む): 61715160

約数和(自身を除く): 42726240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 52747, 105494, 158241, 210988, 263735, 316482, 421976, 474723, 527470, 632964, 791205, 949446, 1054940, 1265928, 1582410, 1898892, 2109880, 2373615, 3164820, 3797784, 4747230, 6329640, 9494460, 18988920]

約数ペア:

[(1, 18988920), (2, 9494460), (3, 6329640), (4, 4747230), (5, 3797784), (6, 3164820), (8, 2373615), (9, 2109880), (10, 1898892), (12, 1582410), (15, 1265928), (18, 1054940), (20, 949446), (24, 791205), (30, 632964), (36, 527470), (40, 474723), (45, 421976), (60, 316482), (72, 263735), (90, 210988), (120, 158241), (180, 105494), (360, 52747)]