31729700

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 72412032

約数和(自身を除く): 40682332

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 47, 50, 86, 94, 100, 157, 172, 188, 215, 235, 314, 430, 470, 628, 785, 860, 940, 1075, 1175, 1570, 2021, 2150, 2350, 3140, 3925, 4042, 4300, 4700, 6751, 7379, 7850, 8084, 10105, 13502, 14758, 15700, 20210, 27004, 29516, 33755, 36895, 40420, 50525, 67510, 73790, 101050, 135020, 147580, 168775, 184475, 202100, 317297, 337550, 368950, 634594, 675100, 737900, 1269188, 1586485, 3172970, 6345940, 7932425, 15864850, 31729700]

約数ペア:

[(1, 31729700), (2, 15864850), (4, 7932425), (5, 6345940), (10, 3172970), (20, 1586485), (25, 1269188), (43, 737900), (47, 675100), (50, 634594), (86, 368950), (94, 337550), (100, 317297), (157, 202100), (172, 184475), (188, 168775), (215, 147580), (235, 135020), (314, 101050), (430, 73790), (470, 67510), (628, 50525), (785, 40420), (860, 36895), (940, 33755), (1075, 29516), (1175, 27004), (1570, 20210), (2021, 15700), (2150, 14758), (2350, 13502), (3140, 10105), (3925, 8084), (4042, 7850), (4300, 7379), (4700, 6751)]