19655960

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{2039}}^1$

素因数の和:2291

約数の個数: 32

約数和(自身を含む): 44431200

約数和(自身を除く): 24775240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2039, 2410, 4078, 4820, 8156, 9640, 10195, 16312, 20390, 40780, 81560, 491399, 982798, 1965596, 2456995, 3931192, 4913990, 9827980, 19655960]

約数ペア:

[(1, 19655960), (2, 9827980), (4, 4913990), (5, 3931192), (8, 2456995), (10, 1965596), (20, 982798), (40, 491399), (241, 81560), (482, 40780), (964, 20390), (1205, 16312), (1928, 10195), (2039, 9640), (2410, 8156), (4078, 4820)]