68803980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{163819}}^1$

素因数の和:163838

約数の個数: 48

約数和(自身を含む): 220174080

約数和(自身を除く): 151370100

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 163819, 327638, 491457, 655276, 819095, 982914, 1146733, 1638190, 1965828, 2293466, 2457285, 3276380, 3440199, 4586932, 4914570, 5733665, 6880398, 9829140, 11467330, 13760796, 17200995, 22934660, 34401990, 68803980]

約数ペア:

[(1, 68803980), (2, 34401990), (3, 22934660), (4, 17200995), (5, 13760796), (6, 11467330), (7, 9829140), (10, 6880398), (12, 5733665), (14, 4914570), (15, 4586932), (20, 3440199), (21, 3276380), (28, 2457285), (30, 2293466), (35, 1965828), (42, 1638190), (60, 1146733), (70, 982914), (84, 819095), (105, 655276), (140, 491457), (210, 327638), (420, 163819)]