28918140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{349}}^1\times {\mathrm{1381}}^1$

素因数の和:1742

約数の個数: 48

約数和(自身を含む): 81261600

約数和(自身を除く): 52343460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 349, 698, 1047, 1381, 1396, 1745, 2094, 2762, 3490, 4143, 4188, 5235, 5524, 6905, 6980, 8286, 10470, 13810, 16572, 20715, 20940, 27620, 41430, 82860, 481969, 963938, 1445907, 1927876, 2409845, 2891814, 4819690, 5783628, 7229535, 9639380, 14459070, 28918140]

約数ペア:

[(1, 28918140), (2, 14459070), (3, 9639380), (4, 7229535), (5, 5783628), (6, 4819690), (10, 2891814), (12, 2409845), (15, 1927876), (20, 1445907), (30, 963938), (60, 481969), (349, 82860), (698, 41430), (1047, 27620), (1381, 20940), (1396, 20715), (1745, 16572), (2094, 13810), (2762, 10470), (3490, 8286), (4143, 6980), (4188, 6905), (5235, 5524)]