28156970

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{643}}^1$

素因数の和:830

約数の個数: 32

約数和(自身を含む): 52859520

約数和(自身を除く): 24702550

約数列:

[1, 2, 5, 10, 29, 58, 145, 151, 290, 302, 643, 755, 1286, 1510, 3215, 4379, 6430, 8758, 18647, 21895, 37294, 43790, 93235, 97093, 186470, 194186, 485465, 970930, 2815697, 5631394, 14078485, 28156970]

約数ペア:

[(1, 28156970), (2, 14078485), (5, 5631394), (10, 2815697), (29, 970930), (58, 485465), (145, 194186), (151, 186470), (290, 97093), (302, 93235), (643, 43790), (755, 37294), (1286, 21895), (1510, 18647), (3215, 8758), (4379, 6430)]