2786590

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:228

約数の個数: 32

約数和(自身を含む): 5287680

約数和(自身を除く): 2501090

約数列:

[1, 2, 5, 10, 31, 62, 89, 101, 155, 178, 202, 310, 445, 505, 890, 1010, 2759, 3131, 5518, 6262, 8989, 13795, 15655, 17978, 27590, 31310, 44945, 89890, 278659, 557318, 1393295, 2786590]

約数ペア:

[(1, 2786590), (2, 1393295), (5, 557318), (10, 278659), (31, 89890), (62, 44945), (89, 31310), (101, 27590), (155, 17978), (178, 15655), (202, 13795), (310, 8989), (445, 6262), (505, 5518), (890, 3131), (1010, 2759)]