20543950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{743}}^1$

素因数の和:841

約数の個数: 48

約数和(自身を含む): 44282880

約数和(自身を除く): 23738930

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 79, 158, 175, 350, 395, 553, 743, 790, 1106, 1486, 1975, 2765, 3715, 3950, 5201, 5530, 7430, 10402, 13825, 18575, 26005, 27650, 37150, 52010, 58697, 117394, 130025, 260050, 293485, 410879, 586970, 821758, 1467425, 2054395, 2934850, 4108790, 10271975, 20543950]

約数ペア:

[(1, 20543950), (2, 10271975), (5, 4108790), (7, 2934850), (10, 2054395), (14, 1467425), (25, 821758), (35, 586970), (50, 410879), (70, 293485), (79, 260050), (158, 130025), (175, 117394), (350, 58697), (395, 52010), (553, 37150), (743, 27650), (790, 26005), (1106, 18575), (1486, 13825), (1975, 10402), (2765, 7430), (3715, 5530), (3950, 5201)]