129281620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{1663}}^1$

素因数の和:1721

約数の個数: 72

約数和(自身を含む): 306948096

約数和(自身を除く): 177666476

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 169, 230, 260, 299, 338, 460, 598, 676, 845, 1196, 1495, 1663, 1690, 2990, 3326, 3380, 3887, 5980, 6652, 7774, 8315, 15548, 16630, 19435, 21619, 33260, 38249, 38870, 43238, 76498, 77740, 86476, 108095, 152996, 191245, 216190, 281047, 382490, 432380, 497237, 562094, 764980, 994474, 1124188, 1405235, 1988948, 2486185, 2810470, 4972370, 5620940, 6464081, 9944740, 12928162, 25856324, 32320405, 64640810, 129281620]

約数ペア:

[(1, 129281620), (2, 64640810), (4, 32320405), (5, 25856324), (10, 12928162), (13, 9944740), (20, 6464081), (23, 5620940), (26, 4972370), (46, 2810470), (52, 2486185), (65, 1988948), (92, 1405235), (115, 1124188), (130, 994474), (169, 764980), (230, 562094), (260, 497237), (299, 432380), (338, 382490), (460, 281047), (598, 216190), (676, 191245), (845, 152996), (1196, 108095), (1495, 86476), (1663, 77740), (1690, 76498), (2990, 43238), (3326, 38870), (3380, 38249), (3887, 33260), (5980, 21619), (6652, 19435), (7774, 16630), (8315, 15548)]