18988600

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^2\times {\mathrm{263}}^1$

素因数の和:317

約数の個数: 72

約数和(自身を含む): 46771560

約数和(自身を除く): 27782960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 263, 361, 380, 475, 526, 722, 760, 950, 1052, 1315, 1444, 1805, 1900, 2104, 2630, 2888, 3610, 3800, 4997, 5260, 6575, 7220, 9025, 9994, 10520, 13150, 14440, 18050, 19988, 24985, 26300, 36100, 39976, 49970, 52600, 72200, 94943, 99940, 124925, 189886, 199880, 249850, 379772, 474715, 499700, 759544, 949430, 999400, 1898860, 2373575, 3797720, 4747150, 9494300, 18988600]

約数ペア:

[(1, 18988600), (2, 9494300), (4, 4747150), (5, 3797720), (8, 2373575), (10, 1898860), (19, 999400), (20, 949430), (25, 759544), (38, 499700), (40, 474715), (50, 379772), (76, 249850), (95, 199880), (100, 189886), (152, 124925), (190, 99940), (200, 94943), (263, 72200), (361, 52600), (380, 49970), (475, 39976), (526, 36100), (722, 26300), (760, 24985), (950, 19988), (1052, 18050), (1315, 14440), (1444, 13150), (1805, 10520), (1900, 9994), (2104, 9025), (2630, 7220), (2888, 6575), (3610, 5260), (3800, 4997)]