81571230

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:243

約数の個数: 144

約数和(自身を含む): 238432896

約数和(自身を除く): 156861666

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 31, 39, 45, 62, 65, 78, 90, 93, 117, 130, 155, 169, 173, 186, 195, 234, 279, 310, 338, 346, 390, 403, 465, 507, 519, 558, 585, 806, 845, 865, 930, 1014, 1038, 1170, 1209, 1395, 1521, 1557, 1690, 1730, 2015, 2249, 2418, 2535, 2595, 2790, 3042, 3114, 3627, 4030, 4498, 5070, 5190, 5239, 5363, 6045, 6747, 7254, 7605, 7785, 10478, 10726, 11245, 12090, 13494, 15210, 15570, 15717, 16089, 18135, 20241, 22490, 26195, 26815, 29237, 31434, 32178, 33735, 36270, 40482, 47151, 48267, 52390, 53630, 58474, 67470, 69719, 78585, 80445, 87711, 94302, 96534, 101205, 139438, 146185, 157170, 160890, 175422, 202410, 209157, 235755, 241335, 263133, 292370, 348595, 418314, 438555, 471510, 482670, 526266, 627471, 697190, 877110, 906347, 1045785, 1254942, 1315665, 1812694, 2091570, 2631330, 2719041, 3137355, 4531735, 5438082, 6274710, 8157123, 9063470, 13595205, 16314246, 27190410, 40785615, 81571230]

約数ペア:

[(1, 81571230), (2, 40785615), (3, 27190410), (5, 16314246), (6, 13595205), (9, 9063470), (10, 8157123), (13, 6274710), (15, 5438082), (18, 4531735), (26, 3137355), (30, 2719041), (31, 2631330), (39, 2091570), (45, 1812694), (62, 1315665), (65, 1254942), (78, 1045785), (90, 906347), (93, 877110), (117, 697190), (130, 627471), (155, 526266), (169, 482670), (173, 471510), (186, 438555), (195, 418314), (234, 348595), (279, 292370), (310, 263133), (338, 241335), (346, 235755), (390, 209157), (403, 202410), (465, 175422), (507, 160890), (519, 157170), (558, 146185), (585, 139438), (806, 101205), (845, 96534), (865, 94302), (930, 87711), (1014, 80445), (1038, 78585), (1170, 69719), (1209, 67470), (1395, 58474), (1521, 53630), (1557, 52390), (1690, 48267), (1730, 47151), (2015, 40482), (2249, 36270), (2418, 33735), (2535, 32178), (2595, 31434), (2790, 29237), (3042, 26815), (3114, 26195), (3627, 22490), (4030, 20241), (4498, 18135), (5070, 16089), (5190, 15717), (5239, 15570), (5363, 15210), (6045, 13494), (6747, 12090), (7254, 11245), (7605, 10726), (7785, 10478)]