78404340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:254

約数の個数: 192

約数和(自身を含む): 270950400

約数和(自身を除く): 192546060

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 79, 84, 85, 102, 105, 119, 139, 140, 158, 170, 204, 210, 237, 238, 255, 278, 316, 340, 357, 395, 417, 420, 474, 476, 510, 553, 556, 595, 695, 714, 790, 834, 948, 973, 1020, 1106, 1185, 1190, 1343, 1390, 1428, 1580, 1659, 1668, 1785, 1946, 2085, 2212, 2363, 2370, 2380, 2686, 2765, 2780, 2919, 3318, 3570, 3892, 4029, 4170, 4726, 4740, 4865, 5372, 5530, 5838, 6636, 6715, 7089, 7140, 8058, 8295, 8340, 9401, 9452, 9730, 10981, 11060, 11676, 11815, 13430, 14178, 14595, 16116, 16541, 16590, 18802, 19460, 20145, 21962, 23630, 26860, 28203, 28356, 29190, 32943, 33082, 33180, 35445, 37604, 40290, 43924, 47005, 47260, 49623, 54905, 56406, 58380, 65886, 66164, 70890, 76867, 80580, 82705, 94010, 99246, 109810, 112812, 131772, 141015, 141780, 153734, 164715, 165410, 186677, 188020, 198492, 219620, 230601, 248115, 282030, 307468, 329430, 330820, 373354, 384335, 461202, 496230, 560031, 564060, 658860, 746708, 768670, 922404, 933385, 992460, 1120062, 1153005, 1306739, 1537340, 1866770, 2240124, 2306010, 2613478, 2800155, 3733540, 3920217, 4612020, 5226956, 5600310, 6533695, 7840434, 11200620, 13067390, 15680868, 19601085, 26134780, 39202170, 78404340]

約数ペア:

[(1, 78404340), (2, 39202170), (3, 26134780), (4, 19601085), (5, 15680868), (6, 13067390), (7, 11200620), (10, 7840434), (12, 6533695), (14, 5600310), (15, 5226956), (17, 4612020), (20, 3920217), (21, 3733540), (28, 2800155), (30, 2613478), (34, 2306010), (35, 2240124), (42, 1866770), (51, 1537340), (60, 1306739), (68, 1153005), (70, 1120062), (79, 992460), (84, 933385), (85, 922404), (102, 768670), (105, 746708), (119, 658860), (139, 564060), (140, 560031), (158, 496230), (170, 461202), (204, 384335), (210, 373354), (237, 330820), (238, 329430), (255, 307468), (278, 282030), (316, 248115), (340, 230601), (357, 219620), (395, 198492), (417, 188020), (420, 186677), (474, 165410), (476, 164715), (510, 153734), (553, 141780), (556, 141015), (595, 131772), (695, 112812), (714, 109810), (790, 99246), (834, 94010), (948, 82705), (973, 80580), (1020, 76867), (1106, 70890), (1185, 66164), (1190, 65886), (1343, 58380), (1390, 56406), (1428, 54905), (1580, 49623), (1659, 47260), (1668, 47005), (1785, 43924), (1946, 40290), (2085, 37604), (2212, 35445), (2363, 33180), (2370, 33082), (2380, 32943), (2686, 29190), (2765, 28356), (2780, 28203), (2919, 26860), (3318, 23630), (3570, 21962), (3892, 20145), (4029, 19460), (4170, 18802), (4726, 16590), (4740, 16541), (4865, 16116), (5372, 14595), (5530, 14178), (5838, 13430), (6636, 11815), (6715, 11676), (7089, 11060), (7140, 10981), (8058, 9730), (8295, 9452), (8340, 9401)]