253385320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1609}}^1$

素因数の和:1778

約数の個数: 64

約数和(自身を含む): 593510400

約数和(自身を除く): 340125080

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 127, 155, 248, 254, 310, 508, 620, 635, 1016, 1240, 1270, 1609, 2540, 3218, 3937, 5080, 6436, 7874, 8045, 12872, 15748, 16090, 19685, 31496, 32180, 39370, 49879, 64360, 78740, 99758, 157480, 199516, 204343, 249395, 399032, 408686, 498790, 817372, 997580, 1021715, 1634744, 1995160, 2043430, 4086860, 6334633, 8173720, 12669266, 25338532, 31673165, 50677064, 63346330, 126692660, 253385320]

約数ペア:

[(1, 253385320), (2, 126692660), (4, 63346330), (5, 50677064), (8, 31673165), (10, 25338532), (20, 12669266), (31, 8173720), (40, 6334633), (62, 4086860), (124, 2043430), (127, 1995160), (155, 1634744), (248, 1021715), (254, 997580), (310, 817372), (508, 498790), (620, 408686), (635, 399032), (1016, 249395), (1240, 204343), (1270, 199516), (1609, 157480), (2540, 99758), (3218, 78740), (3937, 64360), (5080, 49879), (6436, 39370), (7874, 32180), (8045, 31496), (12872, 19685), (15748, 16090)]