1995380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:176

約数の個数: 48

約数和(自身を含む): 4536000

約数和(自身を除く): 2540620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 59, 76, 89, 95, 118, 178, 190, 236, 295, 356, 380, 445, 590, 890, 1121, 1180, 1691, 1780, 2242, 3382, 4484, 5251, 5605, 6764, 8455, 10502, 11210, 16910, 21004, 22420, 26255, 33820, 52510, 99769, 105020, 199538, 399076, 498845, 997690, 1995380]

約数ペア:

[(1, 1995380), (2, 997690), (4, 498845), (5, 399076), (10, 199538), (19, 105020), (20, 99769), (38, 52510), (59, 33820), (76, 26255), (89, 22420), (95, 21004), (118, 16910), (178, 11210), (190, 10502), (236, 8455), (295, 6764), (356, 5605), (380, 5251), (445, 4484), (590, 3382), (890, 2242), (1121, 1780), (1180, 1691)]