78503620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{17761}}^1$

素因数の和:17800

約数の個数: 48

約数和(自身を含む): 187993008

約数和(自身を除く): 109489388

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 17761, 35522, 71044, 88805, 177610, 230893, 301937, 355220, 461786, 603874, 923572, 1154465, 1207748, 1509685, 2308930, 3019370, 3925181, 4617860, 6038740, 7850362, 15700724, 19625905, 39251810, 78503620]

約数ペア:

[(1, 78503620), (2, 39251810), (4, 19625905), (5, 15700724), (10, 7850362), (13, 6038740), (17, 4617860), (20, 3925181), (26, 3019370), (34, 2308930), (52, 1509685), (65, 1207748), (68, 1154465), (85, 923572), (130, 603874), (170, 461786), (221, 355220), (260, 301937), (340, 230893), (442, 177610), (884, 88805), (1105, 71044), (2210, 35522), (4420, 17761)]