20388013920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{86861}}^1$

素因数の和:87045

約数の個数: 144

約数和(自身を含む): 70001738352

約数和(自身を除く): 49613724432

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, 360, 480, 489, 652, 720, 815, 978, 1304, 1440, 1467, 1630, 1956, 2445, 2608, 2934, 3260, 3912, 4890, 5216, 5868, 6520, 7335, 7824, 9780, 11736, 13040, 14670, 15648, 19560, 23472, 26080, 29340, 39120, 46944, 58680, 78240, 86861, 117360, 173722, 234720, 260583, 347444, 434305, 521166, 694888, 781749, 868610, 1042332, 1302915, 1389776, 1563498, 1737220, 2084664, 2605830, 2779552, 3126996, 3474440, 3908745, 4169328, 5211660, 6253992, 6948880, 7817490, 8338656, 10423320, 12507984, 13897760, 14158343, 15634980, 20846640, 25015968, 28316686, 31269960, 41693280, 42475029, 56633372, 62539920, 70791715, 84950058, 113266744, 125079840, 127425087, 141583430, 169900116, 212375145, 226533488, 254850174, 283166860, 339800232, 424750290, 453066976, 509700348, 566333720, 637125435, 679600464, 849500580, 1019400696, 1132667440, 1274250870, 1359200928, 1699001160, 2038801392, 2265334880, 2548501740, 3398002320, 4077602784, 5097003480, 6796004640, 10194006960, 20388013920]

約数ペア:

[(1, 20388013920), (2, 10194006960), (3, 6796004640), (4, 5097003480), (5, 4077602784), (6, 3398002320), (8, 2548501740), (9, 2265334880), (10, 2038801392), (12, 1699001160), (15, 1359200928), (16, 1274250870), (18, 1132667440), (20, 1019400696), (24, 849500580), (30, 679600464), (32, 637125435), (36, 566333720), (40, 509700348), (45, 453066976), (48, 424750290), (60, 339800232), (72, 283166860), (80, 254850174), (90, 226533488), (96, 212375145), (120, 169900116), (144, 141583430), (160, 127425087), (163, 125079840), (180, 113266744), (240, 84950058), (288, 70791715), (326, 62539920), (360, 56633372), (480, 42475029), (489, 41693280), (652, 31269960), (720, 28316686), (815, 25015968), (978, 20846640), (1304, 15634980), (1440, 14158343), (1467, 13897760), (1630, 12507984), (1956, 10423320), (2445, 8338656), (2608, 7817490), (2934, 6948880), (3260, 6253992), (3912, 5211660), (4890, 4169328), (5216, 3908745), (5868, 3474440), (6520, 3126996), (7335, 2779552), (7824, 2605830), (9780, 2084664), (11736, 1737220), (13040, 1563498), (14670, 1389776), (15648, 1302915), (19560, 1042332), (23472, 868610), (26080, 781749), (29340, 694888), (39120, 521166), (46944, 434305), (58680, 347444), (78240, 260583), (86861, 234720), (117360, 173722)]