18645870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{443}}^1$

素因数の和:537

約数の個数: 64

約数和(自身を含む): 47568384

約数和(自身を除く): 28922514

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 61, 69, 115, 122, 138, 183, 230, 305, 345, 366, 443, 610, 690, 886, 915, 1329, 1403, 1830, 2215, 2658, 2806, 4209, 4430, 6645, 7015, 8418, 10189, 13290, 14030, 20378, 21045, 27023, 30567, 42090, 50945, 54046, 61134, 81069, 101890, 135115, 152835, 162138, 270230, 305670, 405345, 621529, 810690, 1243058, 1864587, 3107645, 3729174, 6215290, 9322935, 18645870]

約数ペア:

[(1, 18645870), (2, 9322935), (3, 6215290), (5, 3729174), (6, 3107645), (10, 1864587), (15, 1243058), (23, 810690), (30, 621529), (46, 405345), (61, 305670), (69, 270230), (115, 162138), (122, 152835), (138, 135115), (183, 101890), (230, 81069), (305, 61134), (345, 54046), (366, 50945), (443, 42090), (610, 30567), (690, 27023), (886, 21045), (915, 20378), (1329, 14030), (1403, 13290), (1830, 10189), (2215, 8418), (2658, 7015), (2806, 6645), (4209, 4430)]