12488140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{12743}}^1$

素因数の和:12766

約数の個数: 36

約数和(自身を含む): 30509136

約数和(自身を除く): 18020996

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 12743, 25486, 50972, 63715, 89201, 127430, 178402, 254860, 356804, 446005, 624407, 892010, 1248814, 1784020, 2497628, 3122035, 6244070, 12488140]

約数ペア:

[(1, 12488140), (2, 6244070), (4, 3122035), (5, 2497628), (7, 1784020), (10, 1248814), (14, 892010), (20, 624407), (28, 446005), (35, 356804), (49, 254860), (70, 178402), (98, 127430), (140, 89201), (196, 63715), (245, 50972), (490, 25486), (980, 12743)]