31447960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{449}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 75816000

約数和(自身を除く): 44368040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 103, 136, 170, 206, 340, 412, 449, 515, 680, 824, 898, 1030, 1751, 1796, 2060, 2245, 3502, 3592, 4120, 4490, 7004, 7633, 8755, 8980, 14008, 15266, 17510, 17960, 30532, 35020, 38165, 46247, 61064, 70040, 76330, 92494, 152660, 184988, 231235, 305320, 369976, 462470, 786199, 924940, 1572398, 1849880, 3144796, 3930995, 6289592, 7861990, 15723980, 31447960]

約数ペア:

[(1, 31447960), (2, 15723980), (4, 7861990), (5, 6289592), (8, 3930995), (10, 3144796), (17, 1849880), (20, 1572398), (34, 924940), (40, 786199), (68, 462470), (85, 369976), (103, 305320), (136, 231235), (170, 184988), (206, 152660), (340, 92494), (412, 76330), (449, 70040), (515, 61064), (680, 46247), (824, 38165), (898, 35020), (1030, 30532), (1751, 17960), (1796, 17510), (2060, 15266), (2245, 14008), (3502, 8980), (3592, 8755), (4120, 7633), (4490, 7004)]