51681240

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1$

素因数の和:448

約数の個数: 192

約数和(自身を含む): 188042400

約数和(自身を除く): 136361160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 81, 90, 104, 108, 117, 120, 130, 135, 156, 162, 180, 195, 216, 234, 243, 260, 270, 312, 324, 351, 360, 390, 405, 409, 468, 486, 520, 540, 585, 648, 702, 780, 810, 818, 936, 972, 1053, 1080, 1170, 1215, 1227, 1404, 1560, 1620, 1636, 1755, 1944, 2045, 2106, 2340, 2430, 2454, 2808, 3159, 3240, 3272, 3510, 3681, 4090, 4212, 4680, 4860, 4908, 5265, 5317, 6135, 6318, 7020, 7362, 8180, 8424, 9720, 9816, 10530, 10634, 11043, 12270, 12636, 14040, 14724, 15795, 15951, 16360, 18405, 21060, 21268, 22086, 24540, 25272, 26585, 29448, 31590, 31902, 33129, 36810, 42120, 42536, 44172, 47853, 49080, 53170, 55215, 63180, 63804, 66258, 73620, 79755, 88344, 95706, 99387, 106340, 110430, 126360, 127608, 132516, 143559, 147240, 159510, 165645, 191412, 198774, 212680, 220860, 239265, 265032, 287118, 319020, 331290, 382824, 397548, 430677, 441720, 478530, 496935, 574236, 638040, 662580, 717795, 795096, 861354, 957060, 993870, 1148472, 1292031, 1325160, 1435590, 1722708, 1914120, 1987740, 2153385, 2584062, 2871180, 3445416, 3975480, 4306770, 5168124, 5742360, 6460155, 8613540, 10336248, 12920310, 17227080, 25840620, 51681240]

約数ペア:

[(1, 51681240), (2, 25840620), (3, 17227080), (4, 12920310), (5, 10336248), (6, 8613540), (8, 6460155), (9, 5742360), (10, 5168124), (12, 4306770), (13, 3975480), (15, 3445416), (18, 2871180), (20, 2584062), (24, 2153385), (26, 1987740), (27, 1914120), (30, 1722708), (36, 1435590), (39, 1325160), (40, 1292031), (45, 1148472), (52, 993870), (54, 957060), (60, 861354), (65, 795096), (72, 717795), (78, 662580), (81, 638040), (90, 574236), (104, 496935), (108, 478530), (117, 441720), (120, 430677), (130, 397548), (135, 382824), (156, 331290), (162, 319020), (180, 287118), (195, 265032), (216, 239265), (234, 220860), (243, 212680), (260, 198774), (270, 191412), (312, 165645), (324, 159510), (351, 147240), (360, 143559), (390, 132516), (405, 127608), (409, 126360), (468, 110430), (486, 106340), (520, 99387), (540, 95706), (585, 88344), (648, 79755), (702, 73620), (780, 66258), (810, 63804), (818, 63180), (936, 55215), (972, 53170), (1053, 49080), (1080, 47853), (1170, 44172), (1215, 42536), (1227, 42120), (1404, 36810), (1560, 33129), (1620, 31902), (1636, 31590), (1755, 29448), (1944, 26585), (2045, 25272), (2106, 24540), (2340, 22086), (2430, 21268), (2454, 21060), (2808, 18405), (3159, 16360), (3240, 15951), (3272, 15795), (3510, 14724), (3681, 14040), (4090, 12636), (4212, 12270), (4680, 11043), (4860, 10634), (4908, 10530), (5265, 9816), (5317, 9720), (6135, 8424), (6318, 8180), (7020, 7362)]