81239340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14879}}^1$

素因数の和:14911

約数の個数: 96

約数和(自身を含む): 279982080

約数和(自身を除く): 198742740

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5460, 14879, 29758, 44637, 59516, 74395, 89274, 104153, 148790, 178548, 193427, 208306, 223185, 297580, 312459, 386854, 416612, 446370, 520765, 580281, 624918, 773708, 892740, 967135, 1041530, 1160562, 1249836, 1353989, 1562295, 1934270, 2083060, 2321124, 2707978, 2901405, 3124590, 3868540, 4061967, 5415956, 5802810, 6249180, 6769945, 8123934, 11605620, 13539890, 16247868, 20309835, 27079780, 40619670, 81239340]

約数ペア:

[(1, 81239340), (2, 40619670), (3, 27079780), (4, 20309835), (5, 16247868), (6, 13539890), (7, 11605620), (10, 8123934), (12, 6769945), (13, 6249180), (14, 5802810), (15, 5415956), (20, 4061967), (21, 3868540), (26, 3124590), (28, 2901405), (30, 2707978), (35, 2321124), (39, 2083060), (42, 1934270), (52, 1562295), (60, 1353989), (65, 1249836), (70, 1160562), (78, 1041530), (84, 967135), (91, 892740), (105, 773708), (130, 624918), (140, 580281), (156, 520765), (182, 446370), (195, 416612), (210, 386854), (260, 312459), (273, 297580), (364, 223185), (390, 208306), (420, 193427), (455, 178548), (546, 148790), (780, 104153), (910, 89274), (1092, 74395), (1365, 59516), (1820, 44637), (2730, 29758), (5460, 14879)]