81494280

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{443}}^1$

素因数の和:540

約数の個数: 192

約数和(自身を含む): 307532160

約数和(自身を除く): 226037880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 73, 84, 90, 105, 120, 126, 140, 146, 168, 180, 210, 219, 252, 280, 292, 315, 360, 365, 420, 438, 443, 504, 511, 584, 630, 657, 730, 840, 876, 886, 1022, 1095, 1260, 1314, 1329, 1460, 1533, 1752, 1772, 2044, 2190, 2215, 2520, 2555, 2628, 2658, 2920, 3066, 3101, 3285, 3544, 3987, 4088, 4380, 4430, 4599, 5110, 5256, 5316, 6132, 6202, 6570, 6645, 7665, 7974, 8760, 8860, 9198, 9303, 10220, 10632, 12264, 12404, 13140, 13290, 15330, 15505, 15948, 17720, 18396, 18606, 19935, 20440, 22995, 24808, 26280, 26580, 27909, 30660, 31010, 31896, 32339, 36792, 37212, 39870, 45990, 46515, 53160, 55818, 61320, 62020, 64678, 74424, 79740, 91980, 93030, 97017, 111636, 124040, 129356, 139545, 159480, 161695, 183960, 186060, 194034, 223272, 226373, 258712, 279090, 291051, 323390, 372120, 388068, 452746, 485085, 558180, 582102, 646780, 679119, 776136, 905492, 970170, 1116360, 1131865, 1164204, 1293560, 1358238, 1455255, 1810984, 1940340, 2037357, 2263730, 2328408, 2716476, 2910510, 3395595, 3880680, 4074714, 4527460, 5432952, 5821020, 6791190, 8149428, 9054920, 10186785, 11642040, 13582380, 16298856, 20373570, 27164760, 40747140, 81494280]

約数ペア:

[(1, 81494280), (2, 40747140), (3, 27164760), (4, 20373570), (5, 16298856), (6, 13582380), (7, 11642040), (8, 10186785), (9, 9054920), (10, 8149428), (12, 6791190), (14, 5821020), (15, 5432952), (18, 4527460), (20, 4074714), (21, 3880680), (24, 3395595), (28, 2910510), (30, 2716476), (35, 2328408), (36, 2263730), (40, 2037357), (42, 1940340), (45, 1810984), (56, 1455255), (60, 1358238), (63, 1293560), (70, 1164204), (72, 1131865), (73, 1116360), (84, 970170), (90, 905492), (105, 776136), (120, 679119), (126, 646780), (140, 582102), (146, 558180), (168, 485085), (180, 452746), (210, 388068), (219, 372120), (252, 323390), (280, 291051), (292, 279090), (315, 258712), (360, 226373), (365, 223272), (420, 194034), (438, 186060), (443, 183960), (504, 161695), (511, 159480), (584, 139545), (630, 129356), (657, 124040), (730, 111636), (840, 97017), (876, 93030), (886, 91980), (1022, 79740), (1095, 74424), (1260, 64678), (1314, 62020), (1329, 61320), (1460, 55818), (1533, 53160), (1752, 46515), (1772, 45990), (2044, 39870), (2190, 37212), (2215, 36792), (2520, 32339), (2555, 31896), (2628, 31010), (2658, 30660), (2920, 27909), (3066, 26580), (3101, 26280), (3285, 24808), (3544, 22995), (3987, 20440), (4088, 19935), (4380, 18606), (4430, 18396), (4599, 17720), (5110, 15948), (5256, 15505), (5316, 15330), (6132, 13290), (6202, 13140), (6570, 12404), (6645, 12264), (7665, 10632), (7974, 10220), (8760, 9303), (8860, 9198)]