261812460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47951}}^1$

素因数の和:47983

約数の個数: 96

約数和(自身を含む): 902264832

約数和(自身を除く): 640452372

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5460, 47951, 95902, 143853, 191804, 239755, 287706, 335657, 479510, 575412, 623363, 671314, 719265, 959020, 1006971, 1246726, 1342628, 1438530, 1678285, 1870089, 2013942, 2493452, 2877060, 3116815, 3356570, 3740178, 4027884, 4363541, 5034855, 6233630, 6713140, 7480356, 8727082, 9350445, 10069710, 12467260, 13090623, 17454164, 18700890, 20139420, 21817705, 26181246, 37401780, 43635410, 52362492, 65453115, 87270820, 130906230, 261812460]

約数ペア:

[(1, 261812460), (2, 130906230), (3, 87270820), (4, 65453115), (5, 52362492), (6, 43635410), (7, 37401780), (10, 26181246), (12, 21817705), (13, 20139420), (14, 18700890), (15, 17454164), (20, 13090623), (21, 12467260), (26, 10069710), (28, 9350445), (30, 8727082), (35, 7480356), (39, 6713140), (42, 6233630), (52, 5034855), (60, 4363541), (65, 4027884), (70, 3740178), (78, 3356570), (84, 3116815), (91, 2877060), (105, 2493452), (130, 2013942), (140, 1870089), (156, 1678285), (182, 1438530), (195, 1342628), (210, 1246726), (260, 1006971), (273, 959020), (364, 719265), (390, 671314), (420, 623363), (455, 575412), (546, 479510), (780, 335657), (910, 287706), (1092, 239755), (1365, 191804), (1820, 143853), (2730, 95902), (5460, 47951)]