1961180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 4680480

約数和(自身を除く): 2719300

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 397, 494, 794, 988, 1235, 1588, 1985, 2470, 3970, 4940, 5161, 7543, 7940, 10322, 15086, 20644, 25805, 30172, 37715, 51610, 75430, 98059, 103220, 150860, 196118, 392236, 490295, 980590, 1961180]

約数ペア:

[(1, 1961180), (2, 980590), (4, 490295), (5, 392236), (10, 196118), (13, 150860), (19, 103220), (20, 98059), (26, 75430), (38, 51610), (52, 37715), (65, 30172), (76, 25805), (95, 20644), (130, 15086), (190, 10322), (247, 7940), (260, 7543), (380, 5161), (397, 4940), (494, 3970), (794, 2470), (988, 1985), (1235, 1588)]