19159220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{397}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 42792960

約数和(自身を除く): 23633740

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 127, 190, 254, 380, 397, 508, 635, 794, 1270, 1588, 1985, 2413, 2540, 3970, 4826, 7543, 7940, 9652, 12065, 15086, 24130, 30172, 37715, 48260, 50419, 75430, 100838, 150860, 201676, 252095, 504190, 957961, 1008380, 1915922, 3831844, 4789805, 9579610, 19159220]

約数ペア:

[(1, 19159220), (2, 9579610), (4, 4789805), (5, 3831844), (10, 1915922), (19, 1008380), (20, 957961), (38, 504190), (76, 252095), (95, 201676), (127, 150860), (190, 100838), (254, 75430), (380, 50419), (397, 48260), (508, 37715), (635, 30172), (794, 24130), (1270, 15086), (1588, 12065), (1985, 9652), (2413, 7940), (2540, 7543), (3970, 4826)]