1215780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{881}}^1$

素因数の和:916

約数の個数: 48

約数和(自身を含む): 3556224

約数和(自身を除く): 2340444

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 881, 1380, 1762, 2643, 3524, 4405, 5286, 8810, 10572, 13215, 17620, 20263, 26430, 40526, 52860, 60789, 81052, 101315, 121578, 202630, 243156, 303945, 405260, 607890, 1215780]

約数ペア:

[(1, 1215780), (2, 607890), (3, 405260), (4, 303945), (5, 243156), (6, 202630), (10, 121578), (12, 101315), (15, 81052), (20, 60789), (23, 52860), (30, 40526), (46, 26430), (60, 20263), (69, 17620), (92, 13215), (115, 10572), (138, 8810), (230, 5286), (276, 4405), (345, 3524), (460, 2643), (690, 1762), (881, 1380)]