17881920

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1\times {\mathrm{887}}^1$

素因数の和:917

約数の個数: 168

約数和(自身を含む): 70372224

約数和(自身を除く): 52490304

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 420, 448, 480, 504, 560, 576, 630, 672, 720, 840, 887, 960, 1008, 1120, 1260, 1344, 1440, 1680, 1774, 2016, 2240, 2520, 2661, 2880, 3360, 3548, 4032, 4435, 5040, 5322, 6209, 6720, 7096, 7983, 8870, 10080, 10644, 12418, 13305, 14192, 15966, 17740, 18627, 20160, 21288, 24836, 26610, 28384, 31045, 31932, 35480, 37254, 39915, 42576, 49672, 53220, 55881, 56768, 62090, 63864, 70960, 74508, 79830, 85152, 93135, 99344, 106440, 111762, 124180, 127728, 141920, 149016, 159660, 170304, 186270, 198688, 212880, 223524, 248360, 255456, 279405, 283840, 298032, 319320, 372540, 397376, 425760, 447048, 496720, 510912, 558810, 596064, 638640, 745080, 851520, 894096, 993440, 1117620, 1192128, 1277280, 1490160, 1788192, 1986880, 2235240, 2554560, 2980320, 3576384, 4470480, 5960640, 8940960, 17881920]

約数ペア:

[(1, 17881920), (2, 8940960), (3, 5960640), (4, 4470480), (5, 3576384), (6, 2980320), (7, 2554560), (8, 2235240), (9, 1986880), (10, 1788192), (12, 1490160), (14, 1277280), (15, 1192128), (16, 1117620), (18, 993440), (20, 894096), (21, 851520), (24, 745080), (28, 638640), (30, 596064), (32, 558810), (35, 510912), (36, 496720), (40, 447048), (42, 425760), (45, 397376), (48, 372540), (56, 319320), (60, 298032), (63, 283840), (64, 279405), (70, 255456), (72, 248360), (80, 223524), (84, 212880), (90, 198688), (96, 186270), (105, 170304), (112, 159660), (120, 149016), (126, 141920), (140, 127728), (144, 124180), (160, 111762), (168, 106440), (180, 99344), (192, 93135), (210, 85152), (224, 79830), (240, 74508), (252, 70960), (280, 63864), (288, 62090), (315, 56768), (320, 55881), (336, 53220), (360, 49672), (420, 42576), (448, 39915), (480, 37254), (504, 35480), (560, 31932), (576, 31045), (630, 28384), (672, 26610), (720, 24836), (840, 21288), (887, 20160), (960, 18627), (1008, 17740), (1120, 15966), (1260, 14192), (1344, 13305), (1440, 12418), (1680, 10644), (1774, 10080), (2016, 8870), (2240, 7983), (2520, 7096), (2661, 6720), (2880, 6209), (3360, 5322), (3548, 5040), (4032, 4435)]