19199820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4507}}^1$

素因数の和:4590

約数の個数: 48

約数和(自身を含む): 54528768

約数和(自身を除く): 35328948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 4507, 9014, 13521, 18028, 22535, 27042, 45070, 54084, 67605, 90140, 135210, 270420, 319997, 639994, 959991, 1279988, 1599985, 1919982, 3199970, 3839964, 4799955, 6399940, 9599910, 19199820]

約数ペア:

[(1, 19199820), (2, 9599910), (3, 6399940), (4, 4799955), (5, 3839964), (6, 3199970), (10, 1919982), (12, 1599985), (15, 1279988), (20, 959991), (30, 639994), (60, 319997), (71, 270420), (142, 135210), (213, 90140), (284, 67605), (355, 54084), (426, 45070), (710, 27042), (852, 22535), (1065, 18028), (1420, 13521), (2130, 9014), (4260, 4507)]