81236948800

素因数分解:

$2^6\times 5^2\times 7^1\times {\mathrm{431}}^1\times {\mathrm{16829}}^1$

素因数の和:17289

約数の個数: 168

約数和(自身を含む): 228993557760

約数和(自身を除く): 147756608960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 140, 160, 175, 200, 224, 280, 320, 350, 400, 431, 448, 560, 700, 800, 862, 1120, 1400, 1600, 1724, 2155, 2240, 2800, 3017, 3448, 4310, 5600, 6034, 6896, 8620, 10775, 11200, 12068, 13792, 15085, 16829, 17240, 21550, 24136, 27584, 30170, 33658, 34480, 43100, 48272, 60340, 67316, 68960, 75425, 84145, 86200, 96544, 117803, 120680, 134632, 137920, 150850, 168290, 172400, 193088, 235606, 241360, 269264, 301700, 336580, 344800, 420725, 471212, 482720, 538528, 589015, 603400, 673160, 689600, 841450, 942424, 965440, 1077056, 1178030, 1206800, 1346320, 1682900, 1884848, 2356060, 2413600, 2692640, 2945075, 3365800, 3769696, 4712120, 4827200, 5385280, 5890150, 6731600, 7253299, 7539392, 9424240, 11780300, 13463200, 14506598, 18848480, 23560600, 26926400, 29013196, 36266495, 37696960, 47121200, 50773093, 58026392, 72532990, 94242400, 101546186, 116052784, 145065980, 181332475, 188484800, 203092372, 232105568, 253865465, 290131960, 362664950, 406184744, 464211136, 507730930, 580263920, 725329900, 812369488, 1015461860, 1160527840, 1269327325, 1450659800, 1624738976, 2030923720, 2321055680, 2538654650, 2901319600, 3249477952, 4061847440, 5077309300, 5802639200, 8123694880, 10154618600, 11605278400, 16247389760, 20309237200, 40618474400, 81236948800]

約数ペア:

[(1, 81236948800), (2, 40618474400), (4, 20309237200), (5, 16247389760), (7, 11605278400), (8, 10154618600), (10, 8123694880), (14, 5802639200), (16, 5077309300), (20, 4061847440), (25, 3249477952), (28, 2901319600), (32, 2538654650), (35, 2321055680), (40, 2030923720), (50, 1624738976), (56, 1450659800), (64, 1269327325), (70, 1160527840), (80, 1015461860), (100, 812369488), (112, 725329900), (140, 580263920), (160, 507730930), (175, 464211136), (200, 406184744), (224, 362664950), (280, 290131960), (320, 253865465), (350, 232105568), (400, 203092372), (431, 188484800), (448, 181332475), (560, 145065980), (700, 116052784), (800, 101546186), (862, 94242400), (1120, 72532990), (1400, 58026392), (1600, 50773093), (1724, 47121200), (2155, 37696960), (2240, 36266495), (2800, 29013196), (3017, 26926400), (3448, 23560600), (4310, 18848480), (5600, 14506598), (6034, 13463200), (6896, 11780300), (8620, 9424240), (10775, 7539392), (11200, 7253299), (12068, 6731600), (13792, 5890150), (15085, 5385280), (16829, 4827200), (17240, 4712120), (21550, 3769696), (24136, 3365800), (27584, 2945075), (30170, 2692640), (33658, 2413600), (34480, 2356060), (43100, 1884848), (48272, 1682900), (60340, 1346320), (67316, 1206800), (68960, 1178030), (75425, 1077056), (84145, 965440), (86200, 942424), (96544, 841450), (117803, 689600), (120680, 673160), (134632, 603400), (137920, 589015), (150850, 538528), (168290, 482720), (172400, 471212), (193088, 420725), (235606, 344800), (241360, 336580), (269264, 301700)]