27958280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3221}}^1$

素因数の和:3270

約数の個数: 64

約数和(自身を含む): 74234880

約数和(自身を除く): 46276600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 3221, 4340, 6442, 8680, 12884, 16105, 22547, 25768, 32210, 45094, 64420, 90188, 99851, 112735, 128840, 180376, 199702, 225470, 399404, 450940, 499255, 698957, 798808, 901880, 998510, 1397914, 1997020, 2795828, 3494785, 3994040, 5591656, 6989570, 13979140, 27958280]

約数ペア:

[(1, 27958280), (2, 13979140), (4, 6989570), (5, 5591656), (7, 3994040), (8, 3494785), (10, 2795828), (14, 1997020), (20, 1397914), (28, 998510), (31, 901880), (35, 798808), (40, 698957), (56, 499255), (62, 450940), (70, 399404), (124, 225470), (140, 199702), (155, 180376), (217, 128840), (248, 112735), (280, 99851), (310, 90188), (434, 64420), (620, 45094), (868, 32210), (1085, 25768), (1240, 22547), (1736, 16105), (2170, 12884), (3221, 8680), (4340, 6442)]