40818680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1997}}^1$

素因数の和:2088

約数の個数: 64

約数和(自身を含む): 106453440

約数和(自身を除く): 65634760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 1022, 1460, 1997, 2044, 2555, 2920, 3994, 4088, 5110, 7988, 9985, 10220, 13979, 15976, 19970, 20440, 27958, 39940, 55916, 69895, 79880, 111832, 139790, 145781, 279580, 291562, 559160, 583124, 728905, 1020467, 1166248, 1457810, 2040934, 2915620, 4081868, 5102335, 5831240, 8163736, 10204670, 20409340, 40818680]

約数ペア:

[(1, 40818680), (2, 20409340), (4, 10204670), (5, 8163736), (7, 5831240), (8, 5102335), (10, 4081868), (14, 2915620), (20, 2040934), (28, 1457810), (35, 1166248), (40, 1020467), (56, 728905), (70, 583124), (73, 559160), (140, 291562), (146, 279580), (280, 145781), (292, 139790), (365, 111832), (511, 79880), (584, 69895), (730, 55916), (1022, 39940), (1460, 27958), (1997, 20440), (2044, 19970), (2555, 15976), (2920, 13979), (3994, 10220), (4088, 9985), (5110, 7988)]