254206890

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7079}}^1$

素因数の和:7121

約数の個数: 128

約数和(自身を含む): 815616000

約数和(自身を除く): 561409110

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 27, 30, 35, 38, 42, 45, 54, 57, 63, 70, 90, 95, 105, 114, 126, 133, 135, 171, 189, 190, 210, 266, 270, 285, 315, 342, 378, 399, 513, 570, 630, 665, 798, 855, 945, 1026, 1197, 1330, 1710, 1890, 1995, 2394, 2565, 3591, 3990, 5130, 5985, 7079, 7182, 11970, 14158, 17955, 21237, 35395, 35910, 42474, 49553, 63711, 70790, 99106, 106185, 127422, 134501, 148659, 191133, 212370, 247765, 269002, 297318, 318555, 382266, 403503, 445977, 495530, 637110, 672505, 743295, 807006, 891954, 941507, 955665, 1210509, 1337931, 1345010, 1486590, 1883014, 1911330, 2017515, 2229885, 2421018, 2675862, 2824521, 3631527, 4035030, 4459770, 4707535, 5649042, 6052545, 6689655, 7263054, 8473563, 9415070, 12105090, 13379310, 14122605, 16947126, 18157635, 25420689, 28245210, 36315270, 42367815, 50841378, 84735630, 127103445, 254206890]

約数ペア:

[(1, 254206890), (2, 127103445), (3, 84735630), (5, 50841378), (6, 42367815), (7, 36315270), (9, 28245210), (10, 25420689), (14, 18157635), (15, 16947126), (18, 14122605), (19, 13379310), (21, 12105090), (27, 9415070), (30, 8473563), (35, 7263054), (38, 6689655), (42, 6052545), (45, 5649042), (54, 4707535), (57, 4459770), (63, 4035030), (70, 3631527), (90, 2824521), (95, 2675862), (105, 2421018), (114, 2229885), (126, 2017515), (133, 1911330), (135, 1883014), (171, 1486590), (189, 1345010), (190, 1337931), (210, 1210509), (266, 955665), (270, 941507), (285, 891954), (315, 807006), (342, 743295), (378, 672505), (399, 637110), (513, 495530), (570, 445977), (630, 403503), (665, 382266), (798, 318555), (855, 297318), (945, 269002), (1026, 247765), (1197, 212370), (1330, 191133), (1710, 148659), (1890, 134501), (1995, 127422), (2394, 106185), (2565, 99106), (3591, 70790), (3990, 63711), (5130, 49553), (5985, 42474), (7079, 35910), (7182, 35395), (11970, 21237), (14158, 17955)]