81520320

素因数分解:

$2^6\times 3^1\times 5^1\times 7^2\times {\mathrm{1733}}^1$

素因数の和:1767

約数の個数: 168

約数和(自身を含む): 301258224

約数和(自身を除く): 219737904

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 280, 294, 320, 336, 392, 420, 448, 480, 490, 560, 588, 672, 735, 784, 840, 960, 980, 1120, 1176, 1344, 1470, 1568, 1680, 1733, 1960, 2240, 2352, 2940, 3136, 3360, 3466, 3920, 4704, 5199, 5880, 6720, 6932, 7840, 8665, 9408, 10398, 11760, 12131, 13864, 15680, 17330, 20796, 23520, 24262, 25995, 27728, 34660, 36393, 41592, 47040, 48524, 51990, 55456, 60655, 69320, 72786, 83184, 84917, 97048, 103980, 110912, 121310, 138640, 145572, 166368, 169834, 181965, 194096, 207960, 242620, 254751, 277280, 291144, 332736, 339668, 363930, 388192, 415920, 424585, 485240, 509502, 554560, 582288, 679336, 727860, 776384, 831840, 849170, 970480, 1019004, 1164576, 1273755, 1358672, 1455720, 1663680, 1698340, 1940960, 2038008, 2329152, 2547510, 2717344, 2911440, 3396680, 3881920, 4076016, 5095020, 5434688, 5822880, 6793360, 8152032, 10190040, 11645760, 13586720, 16304064, 20380080, 27173440, 40760160, 81520320]

約数ペア:

[(1, 81520320), (2, 40760160), (3, 27173440), (4, 20380080), (5, 16304064), (6, 13586720), (7, 11645760), (8, 10190040), (10, 8152032), (12, 6793360), (14, 5822880), (15, 5434688), (16, 5095020), (20, 4076016), (21, 3881920), (24, 3396680), (28, 2911440), (30, 2717344), (32, 2547510), (35, 2329152), (40, 2038008), (42, 1940960), (48, 1698340), (49, 1663680), (56, 1455720), (60, 1358672), (64, 1273755), (70, 1164576), (80, 1019004), (84, 970480), (96, 849170), (98, 831840), (105, 776384), (112, 727860), (120, 679336), (140, 582288), (147, 554560), (160, 509502), (168, 485240), (192, 424585), (196, 415920), (210, 388192), (224, 363930), (240, 339668), (245, 332736), (280, 291144), (294, 277280), (320, 254751), (336, 242620), (392, 207960), (420, 194096), (448, 181965), (480, 169834), (490, 166368), (560, 145572), (588, 138640), (672, 121310), (735, 110912), (784, 103980), (840, 97048), (960, 84917), (980, 83184), (1120, 72786), (1176, 69320), (1344, 60655), (1470, 55456), (1568, 51990), (1680, 48524), (1733, 47040), (1960, 41592), (2240, 36393), (2352, 34660), (2940, 27728), (3136, 25995), (3360, 24262), (3466, 23520), (3920, 20796), (4704, 17330), (5199, 15680), (5880, 13864), (6720, 12131), (6932, 11760), (7840, 10398), (8665, 9408)]