207741560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{389}}^1$

素因数の和:505

約数の個数: 96

約数和(自身を含む): 513864000

約数和(自身を除く): 306122440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 79, 104, 130, 158, 169, 260, 316, 338, 389, 395, 520, 632, 676, 778, 790, 845, 1027, 1352, 1556, 1580, 1690, 1945, 2054, 3112, 3160, 3380, 3890, 4108, 5057, 5135, 6760, 7780, 8216, 10114, 10270, 13351, 15560, 20228, 20540, 25285, 26702, 30731, 40456, 41080, 50570, 53404, 61462, 65741, 66755, 101140, 106808, 122924, 131482, 133510, 153655, 202280, 245848, 262964, 267020, 307310, 328705, 399503, 525928, 534040, 614620, 657410, 799006, 1229240, 1314820, 1598012, 1997515, 2629640, 3196024, 3995030, 5193539, 7990060, 10387078, 15980120, 20774156, 25967695, 41548312, 51935390, 103870780, 207741560]

約数ペア:

[(1, 207741560), (2, 103870780), (4, 51935390), (5, 41548312), (8, 25967695), (10, 20774156), (13, 15980120), (20, 10387078), (26, 7990060), (40, 5193539), (52, 3995030), (65, 3196024), (79, 2629640), (104, 1997515), (130, 1598012), (158, 1314820), (169, 1229240), (260, 799006), (316, 657410), (338, 614620), (389, 534040), (395, 525928), (520, 399503), (632, 328705), (676, 307310), (778, 267020), (790, 262964), (845, 245848), (1027, 202280), (1352, 153655), (1556, 133510), (1580, 131482), (1690, 122924), (1945, 106808), (2054, 101140), (3112, 66755), (3160, 65741), (3380, 61462), (3890, 53404), (4108, 50570), (5057, 41080), (5135, 40456), (6760, 30731), (7780, 26702), (8216, 25285), (10114, 20540), (10270, 20228), (13351, 15560)]