20955690

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:117

約数の個数: 192

約数和(自身を含む): 68290560

約数和(自身を除く): 47334870

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 29, 30, 31, 35, 37, 42, 45, 58, 62, 63, 70, 74, 87, 90, 93, 105, 111, 126, 145, 155, 174, 185, 186, 203, 210, 217, 222, 259, 261, 279, 290, 310, 315, 333, 370, 406, 434, 435, 465, 518, 522, 555, 558, 609, 630, 651, 666, 777, 870, 899, 930, 1015, 1073, 1085, 1110, 1147, 1218, 1295, 1302, 1305, 1395, 1554, 1665, 1798, 1827, 1953, 2030, 2146, 2170, 2294, 2331, 2590, 2610, 2697, 2790, 3045, 3219, 3255, 3330, 3441, 3654, 3885, 3906, 4495, 4662, 5365, 5394, 5735, 6090, 6293, 6438, 6510, 6882, 7511, 7770, 8029, 8091, 8990, 9135, 9657, 9765, 10323, 10730, 11470, 11655, 12586, 13485, 15022, 16058, 16095, 16182, 17205, 18270, 18879, 19314, 19530, 20646, 22533, 23310, 24087, 26970, 31465, 32190, 33263, 34410, 37555, 37758, 40145, 40455, 45066, 48174, 48285, 51615, 56637, 62930, 66526, 67599, 72261, 75110, 80290, 80910, 94395, 96570, 99789, 103230, 112665, 113274, 120435, 135198, 144522, 166315, 188790, 199578, 225330, 232841, 240870, 283185, 299367, 332630, 337995, 361305, 465682, 498945, 566370, 598734, 675990, 698523, 722610, 997890, 1164205, 1397046, 1496835, 2095569, 2328410, 2993670, 3492615, 4191138, 6985230, 10477845, 20955690]

約数ペア:

[(1, 20955690), (2, 10477845), (3, 6985230), (5, 4191138), (6, 3492615), (7, 2993670), (9, 2328410), (10, 2095569), (14, 1496835), (15, 1397046), (18, 1164205), (21, 997890), (29, 722610), (30, 698523), (31, 675990), (35, 598734), (37, 566370), (42, 498945), (45, 465682), (58, 361305), (62, 337995), (63, 332630), (70, 299367), (74, 283185), (87, 240870), (90, 232841), (93, 225330), (105, 199578), (111, 188790), (126, 166315), (145, 144522), (155, 135198), (174, 120435), (185, 113274), (186, 112665), (203, 103230), (210, 99789), (217, 96570), (222, 94395), (259, 80910), (261, 80290), (279, 75110), (290, 72261), (310, 67599), (315, 66526), (333, 62930), (370, 56637), (406, 51615), (434, 48285), (435, 48174), (465, 45066), (518, 40455), (522, 40145), (555, 37758), (558, 37555), (609, 34410), (630, 33263), (651, 32190), (666, 31465), (777, 26970), (870, 24087), (899, 23310), (930, 22533), (1015, 20646), (1073, 19530), (1085, 19314), (1110, 18879), (1147, 18270), (1218, 17205), (1295, 16182), (1302, 16095), (1305, 16058), (1395, 15022), (1554, 13485), (1665, 12586), (1798, 11655), (1827, 11470), (1953, 10730), (2030, 10323), (2146, 9765), (2170, 9657), (2294, 9135), (2331, 8990), (2590, 8091), (2610, 8029), (2697, 7770), (2790, 7511), (3045, 6882), (3219, 6510), (3255, 6438), (3330, 6293), (3441, 6090), (3654, 5735), (3885, 5394), (3906, 5365), (4495, 4662)]