19628440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37747}}^1$

素因数の和:37771

約数の個数: 32

約数和(自身を含む): 47562480

約数和(自身を除く): 27934040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 37747, 75494, 150988, 188735, 301976, 377470, 490711, 754940, 981422, 1509880, 1962844, 2453555, 3925688, 4907110, 9814220, 19628440]

約数ペア:

[(1, 19628440), (2, 9814220), (4, 4907110), (5, 3925688), (8, 2453555), (10, 1962844), (13, 1509880), (20, 981422), (26, 754940), (40, 490711), (52, 377470), (65, 301976), (104, 188735), (130, 150988), (260, 75494), (520, 37747)]