19425980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:211

約数の個数: 96

約数和(自身を含む): 50265600

約数和(自身を除く): 30839620

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 67, 70, 76, 95, 109, 133, 134, 140, 190, 218, 266, 268, 335, 380, 436, 469, 532, 545, 665, 670, 763, 938, 1090, 1273, 1330, 1340, 1526, 1876, 2071, 2180, 2345, 2546, 2660, 3052, 3815, 4142, 4690, 5092, 6365, 7303, 7630, 8284, 8911, 9380, 10355, 12730, 14497, 14606, 15260, 17822, 20710, 25460, 28994, 29212, 35644, 36515, 41420, 44555, 51121, 57988, 72485, 73030, 89110, 102242, 138757, 144970, 146060, 178220, 204484, 255605, 277514, 289940, 511210, 555028, 693785, 971299, 1022420, 1387570, 1942598, 2775140, 3885196, 4856495, 9712990, 19425980]

約数ペア:

[(1, 19425980), (2, 9712990), (4, 4856495), (5, 3885196), (7, 2775140), (10, 1942598), (14, 1387570), (19, 1022420), (20, 971299), (28, 693785), (35, 555028), (38, 511210), (67, 289940), (70, 277514), (76, 255605), (95, 204484), (109, 178220), (133, 146060), (134, 144970), (140, 138757), (190, 102242), (218, 89110), (266, 73030), (268, 72485), (335, 57988), (380, 51121), (436, 44555), (469, 41420), (532, 36515), (545, 35644), (665, 29212), (670, 28994), (763, 25460), (938, 20710), (1090, 17822), (1273, 15260), (1330, 14606), (1340, 14497), (1526, 12730), (1876, 10355), (2071, 9380), (2180, 8911), (2345, 8284), (2546, 7630), (2660, 7303), (3052, 6365), (3815, 5092), (4142, 4690)]