1312220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1$

素因数の和:139

約数の個数: 72

約数和(自身を含む): 3485664

約数和(自身を除く): 2173444

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 103, 130, 140, 182, 196, 206, 245, 260, 364, 412, 455, 490, 515, 637, 721, 910, 980, 1030, 1274, 1339, 1442, 1820, 2060, 2548, 2678, 2884, 3185, 3605, 5047, 5356, 6370, 6695, 7210, 9373, 10094, 12740, 13390, 14420, 18746, 20188, 25235, 26780, 37492, 46865, 50470, 65611, 93730, 100940, 131222, 187460, 262444, 328055, 656110, 1312220]

約数ペア:

[(1, 1312220), (2, 656110), (4, 328055), (5, 262444), (7, 187460), (10, 131222), (13, 100940), (14, 93730), (20, 65611), (26, 50470), (28, 46865), (35, 37492), (49, 26780), (52, 25235), (65, 20188), (70, 18746), (91, 14420), (98, 13390), (103, 12740), (130, 10094), (140, 9373), (182, 7210), (196, 6695), (206, 6370), (245, 5356), (260, 5047), (364, 3605), (412, 3185), (455, 2884), (490, 2678), (515, 2548), (637, 2060), (721, 1820), (910, 1442), (980, 1339), (1030, 1274)]