78889330

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{41}}^2$

素因数の和:140

約数の個数: 72

約数和(自身を含む): 165428676

約数和(自身を除く): 86539346

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 41, 65, 82, 95, 130, 190, 205, 247, 361, 410, 494, 533, 722, 779, 1066, 1235, 1558, 1681, 1805, 2470, 2665, 3362, 3610, 3895, 4693, 5330, 7790, 8405, 9386, 10127, 14801, 16810, 20254, 21853, 23465, 29602, 31939, 43706, 46930, 50635, 63878, 74005, 101270, 109265, 148010, 159695, 192413, 218530, 319390, 384826, 415207, 606841, 830414, 962065, 1213682, 1924130, 2076035, 3034205, 4152070, 6068410, 7888933, 15777866, 39444665, 78889330]

約数ペア:

[(1, 78889330), (2, 39444665), (5, 15777866), (10, 7888933), (13, 6068410), (19, 4152070), (26, 3034205), (38, 2076035), (41, 1924130), (65, 1213682), (82, 962065), (95, 830414), (130, 606841), (190, 415207), (205, 384826), (247, 319390), (361, 218530), (410, 192413), (494, 159695), (533, 148010), (722, 109265), (779, 101270), (1066, 74005), (1235, 63878), (1558, 50635), (1681, 46930), (1805, 43706), (2470, 31939), (2665, 29602), (3362, 23465), (3610, 21853), (3895, 20254), (4693, 16810), (5330, 14801), (7790, 10127), (8405, 9386)]