138889707280

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1889}}^1\times {\mathrm{8923}}^1$

素因数の和:10928

約数の個数: 80

約数和(自身を含む): 326262867840

約数和(自身を除く): 187373160560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 1889, 2060, 3778, 4120, 7556, 8240, 8923, 9445, 15112, 17846, 18890, 30224, 35692, 37780, 44615, 71384, 75560, 89230, 142768, 151120, 178460, 194567, 356920, 389134, 713840, 778268, 919069, 972835, 1556536, 1838138, 1945670, 3113072, 3676276, 3891340, 4595345, 7352552, 7782680, 9190690, 14705104, 15565360, 16855547, 18381380, 33711094, 36762760, 67422188, 73525520, 84277735, 134844376, 168555470, 269688752, 337110940, 674221880, 1348443760, 1736121341, 3472242682, 6944485364, 8680606705, 13888970728, 17361213410, 27777941456, 34722426820, 69444853640, 138889707280]

約数ペア:

[(1, 138889707280), (2, 69444853640), (4, 34722426820), (5, 27777941456), (8, 17361213410), (10, 13888970728), (16, 8680606705), (20, 6944485364), (40, 3472242682), (80, 1736121341), (103, 1348443760), (206, 674221880), (412, 337110940), (515, 269688752), (824, 168555470), (1030, 134844376), (1648, 84277735), (1889, 73525520), (2060, 67422188), (3778, 36762760), (4120, 33711094), (7556, 18381380), (8240, 16855547), (8923, 15565360), (9445, 14705104), (15112, 9190690), (17846, 7782680), (18890, 7352552), (30224, 4595345), (35692, 3891340), (37780, 3676276), (44615, 3113072), (71384, 1945670), (75560, 1838138), (89230, 1556536), (142768, 972835), (151120, 919069), (178460, 778268), (194567, 713840), (356920, 389134)]