256178000

素因数分解:

$2^4\times 5^3\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{167}}^1$

素因数の和:262

約数の個数: 160

約数和(自身を含む): 682456320

約数和(自身を除く): 426278320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 59, 65, 80, 100, 104, 118, 125, 130, 167, 200, 208, 236, 250, 260, 295, 325, 334, 400, 472, 500, 520, 590, 650, 668, 767, 835, 944, 1000, 1040, 1180, 1300, 1336, 1475, 1534, 1625, 1670, 2000, 2171, 2360, 2600, 2672, 2950, 3068, 3250, 3340, 3835, 4175, 4342, 4720, 5200, 5900, 6136, 6500, 6680, 7375, 7670, 8350, 8684, 9853, 10855, 11800, 12272, 13000, 13360, 14750, 15340, 16700, 17368, 19175, 19706, 20875, 21710, 23600, 26000, 29500, 30680, 33400, 34736, 38350, 39412, 41750, 43420, 49265, 54275, 59000, 61360, 66800, 76700, 78824, 83500, 86840, 95875, 98530, 108550, 118000, 128089, 153400, 157648, 167000, 173680, 191750, 197060, 217100, 246325, 256178, 271375, 306800, 334000, 383500, 394120, 434200, 492650, 512356, 542750, 640445, 767000, 788240, 868400, 985300, 1024712, 1085500, 1231625, 1280890, 1534000, 1970600, 2049424, 2171000, 2463250, 2561780, 3202225, 3941200, 4342000, 4926500, 5123560, 6404450, 9853000, 10247120, 12808900, 16011125, 19706000, 25617800, 32022250, 51235600, 64044500, 128089000, 256178000]

約数ペア:

[(1, 256178000), (2, 128089000), (4, 64044500), (5, 51235600), (8, 32022250), (10, 25617800), (13, 19706000), (16, 16011125), (20, 12808900), (25, 10247120), (26, 9853000), (40, 6404450), (50, 5123560), (52, 4926500), (59, 4342000), (65, 3941200), (80, 3202225), (100, 2561780), (104, 2463250), (118, 2171000), (125, 2049424), (130, 1970600), (167, 1534000), (200, 1280890), (208, 1231625), (236, 1085500), (250, 1024712), (260, 985300), (295, 868400), (325, 788240), (334, 767000), (400, 640445), (472, 542750), (500, 512356), (520, 492650), (590, 434200), (650, 394120), (668, 383500), (767, 334000), (835, 306800), (944, 271375), (1000, 256178), (1040, 246325), (1180, 217100), (1300, 197060), (1336, 191750), (1475, 173680), (1534, 167000), (1625, 157648), (1670, 153400), (2000, 128089), (2171, 118000), (2360, 108550), (2600, 98530), (2672, 95875), (2950, 86840), (3068, 83500), (3250, 78824), (3340, 76700), (3835, 66800), (4175, 61360), (4342, 59000), (4720, 54275), (5200, 49265), (5900, 43420), (6136, 41750), (6500, 39412), (6680, 38350), (7375, 34736), (7670, 33400), (8350, 30680), (8684, 29500), (9853, 26000), (10855, 23600), (11800, 21710), (12272, 20875), (13000, 19706), (13360, 19175), (14750, 17368), (15340, 16700)]