15541900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:295

約数の個数: 72

約数和(自身を含む): 37497600

約数和(自身を除く): 21955700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 71, 100, 110, 142, 199, 220, 275, 284, 355, 398, 550, 710, 781, 796, 995, 1100, 1420, 1562, 1775, 1990, 2189, 3124, 3550, 3905, 3980, 4378, 4975, 7100, 7810, 8756, 9950, 10945, 14129, 15620, 19525, 19900, 21890, 28258, 39050, 43780, 54725, 56516, 70645, 78100, 109450, 141290, 155419, 218900, 282580, 310838, 353225, 621676, 706450, 777095, 1412900, 1554190, 3108380, 3885475, 7770950, 15541900]

約数ペア:

[(1, 15541900), (2, 7770950), (4, 3885475), (5, 3108380), (10, 1554190), (11, 1412900), (20, 777095), (22, 706450), (25, 621676), (44, 353225), (50, 310838), (55, 282580), (71, 218900), (100, 155419), (110, 141290), (142, 109450), (199, 78100), (220, 70645), (275, 56516), (284, 54725), (355, 43780), (398, 39050), (550, 28258), (710, 21890), (781, 19900), (796, 19525), (995, 15620), (1100, 14129), (1420, 10945), (1562, 9950), (1775, 8756), (1990, 7810), (2189, 7100), (3124, 4975), (3550, 4378), (3905, 3980)]