19681080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{409}}^1$

素因数の和:824

約数の個数: 64

約数和(自身を含む): 59335200

約数和(自身を除く): 39654120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 401, 409, 802, 818, 1203, 1227, 1604, 1636, 2005, 2045, 2406, 2454, 3208, 3272, 4010, 4090, 4812, 4908, 6015, 6135, 8020, 8180, 9624, 9816, 12030, 12270, 16040, 16360, 24060, 24540, 48120, 49080, 164009, 328018, 492027, 656036, 820045, 984054, 1312072, 1640090, 1968108, 2460135, 3280180, 3936216, 4920270, 6560360, 9840540, 19681080]

約数ペア:

[(1, 19681080), (2, 9840540), (3, 6560360), (4, 4920270), (5, 3936216), (6, 3280180), (8, 2460135), (10, 1968108), (12, 1640090), (15, 1312072), (20, 984054), (24, 820045), (30, 656036), (40, 492027), (60, 328018), (120, 164009), (401, 49080), (409, 48120), (802, 24540), (818, 24060), (1203, 16360), (1227, 16040), (1604, 12270), (1636, 12030), (2005, 9816), (2045, 9624), (2406, 8180), (2454, 8020), (3208, 6135), (3272, 6015), (4010, 4908), (4090, 4812)]