71293140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:270

約数の個数: 144

約数和(自身を含む): 226402176

約数和(自身を除く): 155109036

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 61, 86, 90, 122, 129, 151, 172, 180, 183, 215, 244, 258, 302, 305, 366, 387, 430, 453, 516, 549, 604, 610, 645, 732, 755, 774, 860, 906, 915, 1098, 1220, 1290, 1359, 1510, 1548, 1812, 1830, 1935, 2196, 2265, 2580, 2623, 2718, 2745, 3020, 3660, 3870, 4530, 5246, 5436, 5490, 6493, 6795, 7740, 7869, 9060, 9211, 10492, 10980, 12986, 13115, 13590, 15738, 18422, 19479, 23607, 25972, 26230, 27180, 27633, 31476, 32465, 36844, 38958, 39345, 46055, 47214, 52460, 55266, 58437, 64930, 77916, 78690, 82899, 92110, 94428, 97395, 110532, 116874, 118035, 129860, 138165, 157380, 165798, 184220, 194790, 233748, 236070, 276330, 292185, 331596, 389580, 396073, 414495, 472140, 552660, 584370, 792146, 828990, 1168740, 1188219, 1584292, 1657980, 1980365, 2376438, 3564657, 3960730, 4752876, 5941095, 7129314, 7921460, 11882190, 14258628, 17823285, 23764380, 35646570, 71293140]

約数ペア:

[(1, 71293140), (2, 35646570), (3, 23764380), (4, 17823285), (5, 14258628), (6, 11882190), (9, 7921460), (10, 7129314), (12, 5941095), (15, 4752876), (18, 3960730), (20, 3564657), (30, 2376438), (36, 1980365), (43, 1657980), (45, 1584292), (60, 1188219), (61, 1168740), (86, 828990), (90, 792146), (122, 584370), (129, 552660), (151, 472140), (172, 414495), (180, 396073), (183, 389580), (215, 331596), (244, 292185), (258, 276330), (302, 236070), (305, 233748), (366, 194790), (387, 184220), (430, 165798), (453, 157380), (516, 138165), (549, 129860), (604, 118035), (610, 116874), (645, 110532), (732, 97395), (755, 94428), (774, 92110), (860, 82899), (906, 78690), (915, 77916), (1098, 64930), (1220, 58437), (1290, 55266), (1359, 52460), (1510, 47214), (1548, 46055), (1812, 39345), (1830, 38958), (1935, 36844), (2196, 32465), (2265, 31476), (2580, 27633), (2623, 27180), (2718, 26230), (2745, 25972), (3020, 23607), (3660, 19479), (3870, 18422), (4530, 15738), (5246, 13590), (5436, 13115), (5490, 12986), (6493, 10980), (6795, 10492), (7740, 9211), (7869, 9060)]