2158780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1$

素因数の和:83

約数の個数: 72

約数和(自身を含む): 5376672

約数和(自身を除く): 3217892

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 23, 26, 38, 46, 52, 65, 76, 92, 95, 115, 130, 190, 230, 247, 260, 299, 361, 380, 437, 460, 494, 598, 722, 874, 988, 1196, 1235, 1444, 1495, 1748, 1805, 2185, 2470, 2990, 3610, 4370, 4693, 4940, 5681, 5980, 7220, 8303, 8740, 9386, 11362, 16606, 18772, 22724, 23465, 28405, 33212, 41515, 46930, 56810, 83030, 93860, 107939, 113620, 166060, 215878, 431756, 539695, 1079390, 2158780]

約数ペア:

[(1, 2158780), (2, 1079390), (4, 539695), (5, 431756), (10, 215878), (13, 166060), (19, 113620), (20, 107939), (23, 93860), (26, 83030), (38, 56810), (46, 46930), (52, 41515), (65, 33212), (76, 28405), (92, 23465), (95, 22724), (115, 18772), (130, 16606), (190, 11362), (230, 9386), (247, 8740), (260, 8303), (299, 7220), (361, 5980), (380, 5681), (437, 4940), (460, 4693), (494, 4370), (598, 3610), (722, 2990), (874, 2470), (988, 2185), (1196, 1805), (1235, 1748), (1444, 1495)]