42967420

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{239}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 92534400

約数和(自身を除く): 49566980

約数列:

[1, 2, 4, 5, 10, 20, 89, 101, 178, 202, 239, 356, 404, 445, 478, 505, 890, 956, 1010, 1195, 1780, 2020, 2390, 4780, 8989, 17978, 21271, 24139, 35956, 42542, 44945, 48278, 85084, 89890, 96556, 106355, 120695, 179780, 212710, 241390, 425420, 482780, 2148371, 4296742, 8593484, 10741855, 21483710, 42967420]

約数ペア:

[(1, 42967420), (2, 21483710), (4, 10741855), (5, 8593484), (10, 4296742), (20, 2148371), (89, 482780), (101, 425420), (178, 241390), (202, 212710), (239, 179780), (356, 120695), (404, 106355), (445, 96556), (478, 89890), (505, 85084), (890, 48278), (956, 44945), (1010, 42542), (1195, 35956), (1780, 24139), (2020, 21271), (2390, 17978), (4780, 8989)]