209788424

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:390

約数の個数: 64

約数和(自身を含む): 426600000

約数和(自身を除く): 216811576

約数列:

[1, 2, 4, 8, 19, 38, 59, 76, 118, 149, 152, 157, 236, 298, 314, 472, 596, 628, 1121, 1192, 1256, 2242, 2831, 2983, 4484, 5662, 5966, 8791, 8968, 9263, 11324, 11932, 17582, 18526, 22648, 23393, 23864, 35164, 37052, 46786, 70328, 74104, 93572, 167029, 175997, 187144, 334058, 351994, 444467, 668116, 703988, 888934, 1336232, 1380187, 1407976, 1777868, 2760374, 3555736, 5520748, 11041496, 26223553, 52447106, 104894212, 209788424]

約数ペア:

[(1, 209788424), (2, 104894212), (4, 52447106), (8, 26223553), (19, 11041496), (38, 5520748), (59, 3555736), (76, 2760374), (118, 1777868), (149, 1407976), (152, 1380187), (157, 1336232), (236, 888934), (298, 703988), (314, 668116), (472, 444467), (596, 351994), (628, 334058), (1121, 187144), (1192, 175997), (1256, 167029), (2242, 93572), (2831, 74104), (2983, 70328), (4484, 46786), (5662, 37052), (5966, 35164), (8791, 23864), (8968, 23393), (9263, 22648), (11324, 18526), (11932, 17582)]