18256720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{12011}}^1$

素因数の和:12043

約数の個数: 40

約数和(自身を含む): 44684640

約数和(自身を除く): 26427920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 12011, 24022, 48044, 60055, 96088, 120110, 192176, 228209, 240220, 456418, 480440, 912836, 960880, 1141045, 1825672, 2282090, 3651344, 4564180, 9128360, 18256720]

約数ペア:

[(1, 18256720), (2, 9128360), (4, 4564180), (5, 3651344), (8, 2282090), (10, 1825672), (16, 1141045), (19, 960880), (20, 912836), (38, 480440), (40, 456418), (76, 240220), (80, 228209), (95, 192176), (152, 120110), (190, 96088), (304, 60055), (380, 48044), (760, 24022), (1520, 12011)]