262480720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{971}}^1$

素因数の和:1124

約数の個数: 80

約数和(自身を含む): 636387840

約数和(自身を除く): 373907120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 109, 124, 155, 218, 248, 310, 436, 496, 545, 620, 872, 971, 1090, 1240, 1744, 1942, 2180, 2480, 3379, 3884, 4360, 4855, 6758, 7768, 8720, 9710, 13516, 15536, 16895, 19420, 27032, 30101, 33790, 38840, 54064, 60202, 67580, 77680, 105839, 120404, 135160, 150505, 211678, 240808, 270320, 301010, 423356, 481616, 529195, 602020, 846712, 1058390, 1204040, 1693424, 2116780, 2408080, 3281009, 4233560, 6562018, 8467120, 13124036, 16405045, 26248072, 32810090, 52496144, 65620180, 131240360, 262480720]

約数ペア:

[(1, 262480720), (2, 131240360), (4, 65620180), (5, 52496144), (8, 32810090), (10, 26248072), (16, 16405045), (20, 13124036), (31, 8467120), (40, 6562018), (62, 4233560), (80, 3281009), (109, 2408080), (124, 2116780), (155, 1693424), (218, 1204040), (248, 1058390), (310, 846712), (436, 602020), (496, 529195), (545, 481616), (620, 423356), (872, 301010), (971, 270320), (1090, 240808), (1240, 211678), (1744, 150505), (1942, 135160), (2180, 120404), (2480, 105839), (3379, 77680), (3884, 67580), (4360, 60202), (4855, 54064), (6758, 38840), (7768, 33790), (8720, 30101), (9710, 27032), (13516, 19420), (15536, 16895)]