27490180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{439}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 60318720

約数和(自身を除く): 32828540

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 101, 124, 155, 202, 310, 404, 439, 505, 620, 878, 1010, 1756, 2020, 2195, 3131, 4390, 6262, 8780, 12524, 13609, 15655, 27218, 31310, 44339, 54436, 62620, 68045, 88678, 136090, 177356, 221695, 272180, 443390, 886780, 1374509, 2749018, 5498036, 6872545, 13745090, 27490180]

約数ペア:

[(1, 27490180), (2, 13745090), (4, 6872545), (5, 5498036), (10, 2749018), (20, 1374509), (31, 886780), (62, 443390), (101, 272180), (124, 221695), (155, 177356), (202, 136090), (310, 88678), (404, 68045), (439, 62620), (505, 54436), (620, 44339), (878, 31310), (1010, 27218), (1756, 15655), (2020, 13609), (2195, 12524), (3131, 8780), (4390, 6262)]