398390460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{389}}^1$

素因数の和:528

約数の個数: 144

約数和(自身を含む): 1222996320

約数和(自身を除く): 824605860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 101, 130, 156, 169, 195, 202, 260, 303, 338, 389, 390, 404, 505, 507, 606, 676, 778, 780, 845, 1010, 1014, 1167, 1212, 1313, 1515, 1556, 1690, 1945, 2020, 2028, 2334, 2535, 2626, 3030, 3380, 3890, 3939, 4668, 5057, 5070, 5252, 5835, 6060, 6565, 7780, 7878, 10114, 10140, 11670, 13130, 15171, 15756, 17069, 19695, 20228, 23340, 25285, 26260, 30342, 34138, 39289, 39390, 50570, 51207, 60684, 65741, 68276, 75855, 78578, 78780, 85345, 101140, 102414, 117867, 131482, 151710, 157156, 170690, 196445, 197223, 204828, 235734, 256035, 262964, 303420, 328705, 341380, 392890, 394446, 471468, 510757, 512070, 589335, 657410, 785780, 788892, 986115, 1021514, 1024140, 1178670, 1314820, 1532271, 1972230, 2043028, 2357340, 2553785, 3064542, 3944460, 5107570, 6129084, 6639841, 7661355, 10215140, 13279682, 15322710, 19919523, 26559364, 30645420, 33199205, 39839046, 66398410, 79678092, 99597615, 132796820, 199195230, 398390460]

約数ペア:

[(1, 398390460), (2, 199195230), (3, 132796820), (4, 99597615), (5, 79678092), (6, 66398410), (10, 39839046), (12, 33199205), (13, 30645420), (15, 26559364), (20, 19919523), (26, 15322710), (30, 13279682), (39, 10215140), (52, 7661355), (60, 6639841), (65, 6129084), (78, 5107570), (101, 3944460), (130, 3064542), (156, 2553785), (169, 2357340), (195, 2043028), (202, 1972230), (260, 1532271), (303, 1314820), (338, 1178670), (389, 1024140), (390, 1021514), (404, 986115), (505, 788892), (507, 785780), (606, 657410), (676, 589335), (778, 512070), (780, 510757), (845, 471468), (1010, 394446), (1014, 392890), (1167, 341380), (1212, 328705), (1313, 303420), (1515, 262964), (1556, 256035), (1690, 235734), (1945, 204828), (2020, 197223), (2028, 196445), (2334, 170690), (2535, 157156), (2626, 151710), (3030, 131482), (3380, 117867), (3890, 102414), (3939, 101140), (4668, 85345), (5057, 78780), (5070, 78578), (5252, 75855), (5835, 68276), (6060, 65741), (6565, 60684), (7780, 51207), (7878, 50570), (10114, 39390), (10140, 39289), (11670, 34138), (13130, 30342), (15171, 26260), (15756, 25285), (17069, 23340), (19695, 20228)]