71295920

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{389}}^1$

素因数の和:510

約数の個数: 80

約数和(自身を含む): 174096000

約数和(自身を除く): 102800080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 79, 80, 116, 145, 158, 232, 290, 316, 389, 395, 464, 580, 632, 778, 790, 1160, 1264, 1556, 1580, 1945, 2291, 2320, 3112, 3160, 3890, 4582, 6224, 6320, 7780, 9164, 11281, 11455, 15560, 18328, 22562, 22910, 30731, 31120, 36656, 45124, 45820, 56405, 61462, 90248, 91640, 112810, 122924, 153655, 180496, 183280, 225620, 245848, 307310, 451240, 491696, 614620, 891199, 902480, 1229240, 1782398, 2458480, 3564796, 4455995, 7129592, 8911990, 14259184, 17823980, 35647960, 71295920]

約数ペア:

[(1, 71295920), (2, 35647960), (4, 17823980), (5, 14259184), (8, 8911990), (10, 7129592), (16, 4455995), (20, 3564796), (29, 2458480), (40, 1782398), (58, 1229240), (79, 902480), (80, 891199), (116, 614620), (145, 491696), (158, 451240), (232, 307310), (290, 245848), (316, 225620), (389, 183280), (395, 180496), (464, 153655), (580, 122924), (632, 112810), (778, 91640), (790, 90248), (1160, 61462), (1264, 56405), (1556, 45820), (1580, 45124), (1945, 36656), (2291, 31120), (2320, 30731), (3112, 22910), (3160, 22562), (3890, 18328), (4582, 15560), (6224, 11455), (6320, 11281), (7780, 9164)]