31397157080

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{439}}^1\times {\mathrm{25183}}^1$

素因数の和:25704

約数の個数: 64

約数和(自身を含む): 71804620800

約数和(自身を除く): 40407463720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 439, 568, 710, 878, 1420, 1756, 2195, 2840, 3512, 4390, 8780, 17560, 25183, 31169, 50366, 62338, 100732, 124676, 125915, 155845, 201464, 249352, 251830, 311690, 503660, 623380, 1007320, 1246760, 1787993, 3575986, 7151972, 8939965, 11055337, 14303944, 17879930, 22110674, 35759860, 44221348, 55276685, 71519720, 88442696, 110553370, 221106740, 442213480, 784928927, 1569857854, 3139715708, 3924644635, 6279431416, 7849289270, 15698578540, 31397157080]

約数ペア:

[(1, 31397157080), (2, 15698578540), (4, 7849289270), (5, 6279431416), (8, 3924644635), (10, 3139715708), (20, 1569857854), (40, 784928927), (71, 442213480), (142, 221106740), (284, 110553370), (355, 88442696), (439, 71519720), (568, 55276685), (710, 44221348), (878, 35759860), (1420, 22110674), (1756, 17879930), (2195, 14303944), (2840, 11055337), (3512, 8939965), (4390, 7151972), (8780, 3575986), (17560, 1787993), (25183, 1246760), (31169, 1007320), (50366, 623380), (62338, 503660), (100732, 311690), (124676, 251830), (125915, 249352), (155845, 201464)]