81917280

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{349}}^1$

素因数の和:533

約数の個数: 144

約数和(自身を含む): 282063600

約数和(自身を除く): 200146320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 163, 180, 240, 288, 326, 349, 360, 480, 489, 652, 698, 720, 815, 978, 1047, 1304, 1396, 1440, 1467, 1630, 1745, 1956, 2094, 2445, 2608, 2792, 2934, 3141, 3260, 3490, 3912, 4188, 4890, 5216, 5235, 5584, 5868, 6282, 6520, 6980, 7335, 7824, 8376, 9780, 10470, 11168, 11736, 12564, 13040, 13960, 14670, 15648, 15705, 16752, 19560, 20940, 23472, 25128, 26080, 27920, 29340, 31410, 33504, 39120, 41880, 46944, 50256, 55840, 56887, 58680, 62820, 78240, 83760, 100512, 113774, 117360, 125640, 167520, 170661, 227548, 234720, 251280, 284435, 341322, 455096, 502560, 511983, 568870, 682644, 853305, 910192, 1023966, 1137740, 1365288, 1706610, 1820384, 2047932, 2275480, 2559915, 2730576, 3413220, 4095864, 4550960, 5119830, 5461152, 6826440, 8191728, 9101920, 10239660, 13652880, 16383456, 20479320, 27305760, 40958640, 81917280]

約数ペア:

[(1, 81917280), (2, 40958640), (3, 27305760), (4, 20479320), (5, 16383456), (6, 13652880), (8, 10239660), (9, 9101920), (10, 8191728), (12, 6826440), (15, 5461152), (16, 5119830), (18, 4550960), (20, 4095864), (24, 3413220), (30, 2730576), (32, 2559915), (36, 2275480), (40, 2047932), (45, 1820384), (48, 1706610), (60, 1365288), (72, 1137740), (80, 1023966), (90, 910192), (96, 853305), (120, 682644), (144, 568870), (160, 511983), (163, 502560), (180, 455096), (240, 341322), (288, 284435), (326, 251280), (349, 234720), (360, 227548), (480, 170661), (489, 167520), (652, 125640), (698, 117360), (720, 113774), (815, 100512), (978, 83760), (1047, 78240), (1304, 62820), (1396, 58680), (1440, 56887), (1467, 55840), (1630, 50256), (1745, 46944), (1956, 41880), (2094, 39120), (2445, 33504), (2608, 31410), (2792, 29340), (2934, 27920), (3141, 26080), (3260, 25128), (3490, 23472), (3912, 20940), (4188, 19560), (4890, 16752), (5216, 15705), (5235, 15648), (5584, 14670), (5868, 13960), (6282, 13040), (6520, 12564), (6980, 11736), (7335, 11168), (7824, 10470), (8376, 9780)]