21724560

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1$

素因数の和:254

約数の個数: 240

約数和(自身を含む): 86119488

約数和(自身を除く): 64394928

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 18, 20, 22, 24, 26, 30, 33, 36, 39, 40, 44, 45, 48, 52, 55, 60, 65, 66, 72, 78, 80, 88, 90, 99, 104, 110, 117, 120, 130, 132, 143, 144, 156, 165, 176, 180, 195, 198, 208, 211, 220, 234, 240, 260, 264, 286, 312, 330, 360, 390, 396, 422, 429, 440, 468, 495, 520, 528, 572, 585, 624, 633, 660, 715, 720, 780, 792, 844, 858, 880, 936, 990, 1040, 1055, 1144, 1170, 1266, 1287, 1320, 1430, 1560, 1584, 1688, 1716, 1872, 1899, 1980, 2110, 2145, 2288, 2321, 2340, 2532, 2574, 2640, 2743, 2860, 3120, 3165, 3376, 3432, 3798, 3960, 4220, 4290, 4642, 4680, 5064, 5148, 5486, 5720, 6330, 6435, 6864, 6963, 7596, 7920, 8229, 8440, 8580, 9284, 9360, 9495, 10128, 10296, 10972, 11440, 11605, 12660, 12870, 13715, 13926, 15192, 16458, 16880, 17160, 18568, 18990, 20592, 20889, 21944, 23210, 24687, 25320, 25740, 27430, 27852, 30173, 30384, 32916, 34320, 34815, 37136, 37980, 41145, 41778, 43888, 46420, 49374, 50640, 51480, 54860, 55704, 60346, 65832, 69630, 75960, 82290, 83556, 90519, 92840, 98748, 102960, 104445, 109720, 111408, 120692, 123435, 131664, 139260, 150865, 151920, 164580, 167112, 181038, 185680, 197496, 208890, 219440, 241384, 246870, 271557, 278520, 301730, 329160, 334224, 362076, 394992, 417780, 452595, 482768, 493740, 543114, 557040, 603460, 658320, 724152, 835560, 905190, 987480, 1086228, 1206920, 1357785, 1448304, 1671120, 1810380, 1974960, 2172456, 2413840, 2715570, 3620760, 4344912, 5431140, 7241520, 10862280, 21724560]

約数ペア:

[(1, 21724560), (2, 10862280), (3, 7241520), (4, 5431140), (5, 4344912), (6, 3620760), (8, 2715570), (9, 2413840), (10, 2172456), (11, 1974960), (12, 1810380), (13, 1671120), (15, 1448304), (16, 1357785), (18, 1206920), (20, 1086228), (22, 987480), (24, 905190), (26, 835560), (30, 724152), (33, 658320), (36, 603460), (39, 557040), (40, 543114), (44, 493740), (45, 482768), (48, 452595), (52, 417780), (55, 394992), (60, 362076), (65, 334224), (66, 329160), (72, 301730), (78, 278520), (80, 271557), (88, 246870), (90, 241384), (99, 219440), (104, 208890), (110, 197496), (117, 185680), (120, 181038), (130, 167112), (132, 164580), (143, 151920), (144, 150865), (156, 139260), (165, 131664), (176, 123435), (180, 120692), (195, 111408), (198, 109720), (208, 104445), (211, 102960), (220, 98748), (234, 92840), (240, 90519), (260, 83556), (264, 82290), (286, 75960), (312, 69630), (330, 65832), (360, 60346), (390, 55704), (396, 54860), (422, 51480), (429, 50640), (440, 49374), (468, 46420), (495, 43888), (520, 41778), (528, 41145), (572, 37980), (585, 37136), (624, 34815), (633, 34320), (660, 32916), (715, 30384), (720, 30173), (780, 27852), (792, 27430), (844, 25740), (858, 25320), (880, 24687), (936, 23210), (990, 21944), (1040, 20889), (1055, 20592), (1144, 18990), (1170, 18568), (1266, 17160), (1287, 16880), (1320, 16458), (1430, 15192), (1560, 13926), (1584, 13715), (1688, 12870), (1716, 12660), (1872, 11605), (1899, 11440), (1980, 10972), (2110, 10296), (2145, 10128), (2288, 9495), (2321, 9360), (2340, 9284), (2532, 8580), (2574, 8440), (2640, 8229), (2743, 7920), (2860, 7596), (3120, 6963), (3165, 6864), (3376, 6435), (3432, 6330), (3798, 5720), (3960, 5486), (4220, 5148), (4290, 5064), (4642, 4680)]