16720989740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{67061}}^1$

素因数の和:67227

約数の個数: 96

約数和(自身を含む): 43533431424

約数和(自身を除く): 26812441684

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 137, 140, 182, 260, 274, 364, 455, 548, 685, 910, 959, 1370, 1781, 1820, 1918, 2740, 3562, 3836, 4795, 7124, 8905, 9590, 12467, 17810, 19180, 24934, 35620, 49868, 62335, 67061, 124670, 134122, 249340, 268244, 335305, 469427, 670610, 871793, 938854, 1341220, 1743586, 1877708, 2347135, 3487172, 4358965, 4694270, 6102551, 8717930, 9187357, 9388540, 12205102, 17435860, 18374714, 24410204, 30512755, 36749428, 45936785, 61025510, 64311499, 91873570, 119435641, 122051020, 128622998, 183747140, 238871282, 257245996, 321557495, 477742564, 597178205, 643114990, 836049487, 1194356410, 1286229980, 1672098974, 2388712820, 3344197948, 4180247435, 8360494870, 16720989740]

約数ペア:

[(1, 16720989740), (2, 8360494870), (4, 4180247435), (5, 3344197948), (7, 2388712820), (10, 1672098974), (13, 1286229980), (14, 1194356410), (20, 836049487), (26, 643114990), (28, 597178205), (35, 477742564), (52, 321557495), (65, 257245996), (70, 238871282), (91, 183747140), (130, 128622998), (137, 122051020), (140, 119435641), (182, 91873570), (260, 64311499), (274, 61025510), (364, 45936785), (455, 36749428), (548, 30512755), (685, 24410204), (910, 18374714), (959, 17435860), (1370, 12205102), (1781, 9388540), (1820, 9187357), (1918, 8717930), (2740, 6102551), (3562, 4694270), (3836, 4358965), (4795, 3487172), (7124, 2347135), (8905, 1877708), (9590, 1743586), (12467, 1341220), (17810, 938854), (19180, 871793), (24934, 670610), (35620, 469427), (49868, 335305), (62335, 268244), (67061, 249340), (124670, 134122)]