19278320

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{607}}^1$

素因数の和:1017

約数の個数: 40

約数和(自身を含む): 45009024

約数和(自身を除く): 25730704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 607, 794, 1214, 1588, 1985, 2428, 3035, 3176, 3970, 4856, 6070, 6352, 7940, 9712, 12140, 15880, 24280, 31760, 48560, 240979, 481958, 963916, 1204895, 1927832, 2409790, 3855664, 4819580, 9639160, 19278320]

約数ペア:

[(1, 19278320), (2, 9639160), (4, 4819580), (5, 3855664), (8, 2409790), (10, 1927832), (16, 1204895), (20, 963916), (40, 481958), (80, 240979), (397, 48560), (607, 31760), (794, 24280), (1214, 15880), (1588, 12140), (1985, 9712), (2428, 7940), (3035, 6352), (3176, 6070), (3970, 4856)]