2478180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{401}}^1$

素因数の和:516

約数の個数: 48

約数和(自身を含む): 7023744

約数和(自身を除く): 4545564

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 103, 206, 309, 401, 412, 515, 618, 802, 1030, 1203, 1236, 1545, 1604, 2005, 2060, 2406, 3090, 4010, 4812, 6015, 6180, 8020, 12030, 24060, 41303, 82606, 123909, 165212, 206515, 247818, 413030, 495636, 619545, 826060, 1239090, 2478180]

約数ペア:

[(1, 2478180), (2, 1239090), (3, 826060), (4, 619545), (5, 495636), (6, 413030), (10, 247818), (12, 206515), (15, 165212), (20, 123909), (30, 82606), (60, 41303), (103, 24060), (206, 12030), (309, 8020), (401, 6180), (412, 6015), (515, 4812), (618, 4010), (802, 3090), (1030, 2406), (1203, 2060), (1236, 2005), (1545, 1604)]