31299700

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:337

約数の個数: 72

約数和(自身を含む): 72182880

約数和(自身を除く): 40883180

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 43, 50, 58, 86, 100, 116, 145, 172, 215, 251, 290, 430, 502, 580, 725, 860, 1004, 1075, 1247, 1255, 1450, 2150, 2494, 2510, 2900, 4300, 4988, 5020, 6235, 6275, 7279, 10793, 12470, 12550, 14558, 21586, 24940, 25100, 29116, 31175, 36395, 43172, 53965, 62350, 72790, 107930, 124700, 145580, 181975, 215860, 269825, 312997, 363950, 539650, 625994, 727900, 1079300, 1251988, 1564985, 3129970, 6259940, 7824925, 15649850, 31299700]

約数ペア:

[(1, 31299700), (2, 15649850), (4, 7824925), (5, 6259940), (10, 3129970), (20, 1564985), (25, 1251988), (29, 1079300), (43, 727900), (50, 625994), (58, 539650), (86, 363950), (100, 312997), (116, 269825), (145, 215860), (172, 181975), (215, 145580), (251, 124700), (290, 107930), (430, 72790), (502, 62350), (580, 53965), (725, 43172), (860, 36395), (1004, 31175), (1075, 29116), (1247, 25100), (1255, 24940), (1450, 21586), (2150, 14558), (2494, 12550), (2510, 12470), (2900, 10793), (4300, 7279), (4988, 6275), (5020, 6235)]