215379280

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{643}}^1$

素因数の和:788

約数の個数: 80

約数和(自身を含む): 517466880

約数和(自身を除く): 302087600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 79, 80, 106, 158, 212, 265, 316, 395, 424, 530, 632, 643, 790, 848, 1060, 1264, 1286, 1580, 2120, 2572, 3160, 3215, 4187, 4240, 5144, 6320, 6430, 8374, 10288, 12860, 16748, 20935, 25720, 33496, 34079, 41870, 50797, 51440, 66992, 68158, 83740, 101594, 136316, 167480, 170395, 203188, 253985, 272632, 334960, 340790, 406376, 507970, 545264, 681580, 812752, 1015940, 1363160, 2031880, 2692241, 2726320, 4063760, 5384482, 10768964, 13461205, 21537928, 26922410, 43075856, 53844820, 107689640, 215379280]

約数ペア:

[(1, 215379280), (2, 107689640), (4, 53844820), (5, 43075856), (8, 26922410), (10, 21537928), (16, 13461205), (20, 10768964), (40, 5384482), (53, 4063760), (79, 2726320), (80, 2692241), (106, 2031880), (158, 1363160), (212, 1015940), (265, 812752), (316, 681580), (395, 545264), (424, 507970), (530, 406376), (632, 340790), (643, 334960), (790, 272632), (848, 253985), (1060, 203188), (1264, 170395), (1286, 167480), (1580, 136316), (2120, 101594), (2572, 83740), (3160, 68158), (3215, 66992), (4187, 51440), (4240, 50797), (5144, 41870), (6320, 34079), (6430, 33496), (8374, 25720), (10288, 20935), (12860, 16748)]