19053220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{389}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 41932800

約数和(自身を除く): 22879580

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 79, 124, 155, 158, 310, 316, 389, 395, 620, 778, 790, 1556, 1580, 1945, 2449, 3890, 4898, 7780, 9796, 12059, 12245, 24118, 24490, 30731, 48236, 48980, 60295, 61462, 120590, 122924, 153655, 241180, 307310, 614620, 952661, 1905322, 3810644, 4763305, 9526610, 19053220]

約数ペア:

[(1, 19053220), (2, 9526610), (4, 4763305), (5, 3810644), (10, 1905322), (20, 952661), (31, 614620), (62, 307310), (79, 241180), (124, 153655), (155, 122924), (158, 120590), (310, 61462), (316, 60295), (389, 48980), (395, 48236), (620, 30731), (778, 24490), (790, 24118), (1556, 12245), (1580, 12059), (1945, 9796), (2449, 7780), (3890, 4898)]