1981120

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1$

素因数の和:209

約数の個数: 56

約数和(自身を含む): 4864608

約数和(自身を除く): 2883488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 151, 160, 164, 205, 302, 320, 328, 410, 604, 656, 755, 820, 1208, 1312, 1510, 1640, 2416, 2624, 3020, 3280, 4832, 6040, 6191, 6560, 9664, 12080, 12382, 13120, 24160, 24764, 30955, 48320, 49528, 61910, 99056, 123820, 198112, 247640, 396224, 495280, 990560, 1981120]

約数ペア:

[(1, 1981120), (2, 990560), (4, 495280), (5, 396224), (8, 247640), (10, 198112), (16, 123820), (20, 99056), (32, 61910), (40, 49528), (41, 48320), (64, 30955), (80, 24764), (82, 24160), (151, 13120), (160, 12382), (164, 12080), (205, 9664), (302, 6560), (320, 6191), (328, 6040), (410, 4832), (604, 3280), (656, 3020), (755, 2624), (820, 2416), (1208, 1640), (1312, 1510)]