19599400

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^2\times {\mathrm{53}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 47533230

約数和(自身を除く): 27933830

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 53, 86, 100, 106, 172, 200, 212, 215, 265, 344, 424, 430, 530, 860, 1060, 1075, 1325, 1720, 1849, 2120, 2150, 2279, 2650, 3698, 4300, 4558, 5300, 7396, 8600, 9116, 9245, 10600, 11395, 14792, 18232, 18490, 22790, 36980, 45580, 46225, 56975, 73960, 91160, 92450, 97997, 113950, 184900, 195994, 227900, 369800, 391988, 455800, 489985, 783976, 979970, 1959940, 2449925, 3919880, 4899850, 9799700, 19599400]

約数ペア:

[(1, 19599400), (2, 9799700), (4, 4899850), (5, 3919880), (8, 2449925), (10, 1959940), (20, 979970), (25, 783976), (40, 489985), (43, 455800), (50, 391988), (53, 369800), (86, 227900), (100, 195994), (106, 184900), (172, 113950), (200, 97997), (212, 92450), (215, 91160), (265, 73960), (344, 56975), (424, 46225), (430, 45580), (530, 36980), (860, 22790), (1060, 18490), (1075, 18232), (1325, 14792), (1720, 11395), (1849, 10600), (2120, 9245), (2150, 9116), (2279, 8600), (2650, 7396), (3698, 5300), (4300, 4558)]