31680740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^3\times {\mathrm{103}}^1$

素因数の和:158

約数の個数: 96

約数和(自身を含む): 83166720

約数和(自身を除く): 51485980

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 103, 130, 140, 169, 182, 206, 260, 338, 364, 412, 455, 515, 676, 721, 845, 910, 1030, 1183, 1339, 1442, 1690, 1820, 2060, 2197, 2366, 2678, 2884, 3380, 3605, 4394, 4732, 5356, 5915, 6695, 7210, 8788, 9373, 10985, 11830, 13390, 14420, 15379, 17407, 18746, 21970, 23660, 26780, 30758, 34814, 37492, 43940, 46865, 61516, 69628, 76895, 87035, 93730, 121849, 153790, 174070, 187460, 226291, 243698, 307580, 348140, 452582, 487396, 609245, 905164, 1131455, 1218490, 1584037, 2262910, 2436980, 3168074, 4525820, 6336148, 7920185, 15840370, 31680740]

約数ペア:

[(1, 31680740), (2, 15840370), (4, 7920185), (5, 6336148), (7, 4525820), (10, 3168074), (13, 2436980), (14, 2262910), (20, 1584037), (26, 1218490), (28, 1131455), (35, 905164), (52, 609245), (65, 487396), (70, 452582), (91, 348140), (103, 307580), (130, 243698), (140, 226291), (169, 187460), (182, 174070), (206, 153790), (260, 121849), (338, 93730), (364, 87035), (412, 76895), (455, 69628), (515, 61516), (676, 46865), (721, 43940), (845, 37492), (910, 34814), (1030, 30758), (1183, 26780), (1339, 23660), (1442, 21970), (1690, 18746), (1820, 17407), (2060, 15379), (2197, 14420), (2366, 13390), (2678, 11830), (2884, 10985), (3380, 9373), (3605, 8788), (4394, 7210), (4732, 6695), (5356, 5915)]