19420120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28559}}^1$

素因数の和:28587

約数の個数: 32

約数和(自身を含む): 46267200

約数和(自身を除く): 26847080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 28559, 57118, 114236, 142795, 228472, 285590, 485503, 571180, 971006, 1142360, 1942012, 2427515, 3884024, 4855030, 9710060, 19420120]

約数ペア:

[(1, 19420120), (2, 9710060), (4, 4855030), (5, 3884024), (8, 2427515), (10, 1942012), (17, 1142360), (20, 971006), (34, 571180), (40, 485503), (68, 285590), (85, 228472), (136, 142795), (170, 114236), (340, 57118), (680, 28559)]