87147440

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{461}}^1$

素因数の和:630

約数の個数: 80

約数和(自身を含む): 216548640

約数和(自身を除く): 129401200

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 139, 170, 272, 278, 340, 461, 556, 680, 695, 922, 1112, 1360, 1390, 1844, 2224, 2305, 2363, 2780, 3688, 4610, 4726, 5560, 7376, 7837, 9220, 9452, 11120, 11815, 15674, 18440, 18904, 23630, 31348, 36880, 37808, 39185, 47260, 62696, 64079, 78370, 94520, 125392, 128158, 156740, 189040, 256316, 313480, 320395, 512632, 626960, 640790, 1025264, 1089343, 1281580, 2178686, 2563160, 4357372, 5126320, 5446715, 8714744, 10893430, 17429488, 21786860, 43573720, 87147440]

約数ペア:

[(1, 87147440), (2, 43573720), (4, 21786860), (5, 17429488), (8, 10893430), (10, 8714744), (16, 5446715), (17, 5126320), (20, 4357372), (34, 2563160), (40, 2178686), (68, 1281580), (80, 1089343), (85, 1025264), (136, 640790), (139, 626960), (170, 512632), (272, 320395), (278, 313480), (340, 256316), (461, 189040), (556, 156740), (680, 128158), (695, 125392), (922, 94520), (1112, 78370), (1360, 64079), (1390, 62696), (1844, 47260), (2224, 39185), (2305, 37808), (2363, 36880), (2780, 31348), (3688, 23630), (4610, 18904), (4726, 18440), (5560, 15674), (7376, 11815), (7837, 11120), (9220, 9452)]