278329100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1231}}^1$

素因数の和:1288

約数の個数: 144

約数和(自身を含む): 769950720

約数和(自身を除く): 491621620

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 25, 28, 34, 35, 38, 50, 68, 70, 76, 85, 95, 100, 119, 133, 140, 170, 175, 190, 238, 266, 323, 340, 350, 380, 425, 475, 476, 532, 595, 646, 665, 700, 850, 950, 1190, 1231, 1292, 1330, 1615, 1700, 1900, 2261, 2380, 2462, 2660, 2975, 3230, 3325, 4522, 4924, 5950, 6155, 6460, 6650, 8075, 8617, 9044, 11305, 11900, 12310, 13300, 16150, 17234, 20927, 22610, 23389, 24620, 30775, 32300, 34468, 41854, 43085, 45220, 46778, 56525, 61550, 83708, 86170, 93556, 104635, 113050, 116945, 123100, 146489, 163723, 172340, 209270, 215425, 226100, 233890, 292978, 327446, 397613, 418540, 430850, 467780, 523175, 584725, 585956, 654892, 732445, 795226, 818615, 861700, 1046350, 1169450, 1464890, 1590452, 1637230, 1988065, 2092700, 2338900, 2783291, 2929780, 3274460, 3662225, 3976130, 4093075, 5566582, 7324450, 7952260, 8186150, 9940325, 11133164, 13916455, 14648900, 16372300, 19880650, 27832910, 39761300, 55665820, 69582275, 139164550, 278329100]

約数ペア:

[(1, 278329100), (2, 139164550), (4, 69582275), (5, 55665820), (7, 39761300), (10, 27832910), (14, 19880650), (17, 16372300), (19, 14648900), (20, 13916455), (25, 11133164), (28, 9940325), (34, 8186150), (35, 7952260), (38, 7324450), (50, 5566582), (68, 4093075), (70, 3976130), (76, 3662225), (85, 3274460), (95, 2929780), (100, 2783291), (119, 2338900), (133, 2092700), (140, 1988065), (170, 1637230), (175, 1590452), (190, 1464890), (238, 1169450), (266, 1046350), (323, 861700), (340, 818615), (350, 795226), (380, 732445), (425, 654892), (475, 585956), (476, 584725), (532, 523175), (595, 467780), (646, 430850), (665, 418540), (700, 397613), (850, 327446), (950, 292978), (1190, 233890), (1231, 226100), (1292, 215425), (1330, 209270), (1615, 172340), (1700, 163723), (1900, 146489), (2261, 123100), (2380, 116945), (2462, 113050), (2660, 104635), (2975, 93556), (3230, 86170), (3325, 83708), (4522, 61550), (4924, 56525), (5950, 46778), (6155, 45220), (6460, 43085), (6650, 41854), (8075, 34468), (8617, 32300), (9044, 30775), (11305, 24620), (11900, 23389), (12310, 22610), (13300, 20927), (16150, 17234)]