80489940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{16981}}^1$

素因数の和:17072

約数の個数: 48

約数和(自身を含む): 228238080

約数和(自身を除く): 147748140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4740, 16981, 33962, 50943, 67924, 84905, 101886, 169810, 203772, 254715, 339620, 509430, 1018860, 1341499, 2682998, 4024497, 5365996, 6707495, 8048994, 13414990, 16097988, 20122485, 26829980, 40244970, 80489940]

約数ペア:

[(1, 80489940), (2, 40244970), (3, 26829980), (4, 20122485), (5, 16097988), (6, 13414990), (10, 8048994), (12, 6707495), (15, 5365996), (20, 4024497), (30, 2682998), (60, 1341499), (79, 1018860), (158, 509430), (237, 339620), (316, 254715), (395, 203772), (474, 169810), (790, 101886), (948, 84905), (1185, 67924), (1580, 50943), (2370, 33962), (4740, 16981)]