78271620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{337}}^1$

素因数の和:442

約数の個数: 144

約数和(自身を含む): 258935040

約数和(自身を除く): 180663420

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 79, 84, 98, 105, 140, 147, 158, 196, 210, 237, 245, 294, 316, 337, 395, 420, 474, 490, 553, 588, 674, 735, 790, 948, 980, 1011, 1106, 1185, 1348, 1470, 1580, 1659, 1685, 2022, 2212, 2359, 2370, 2765, 2940, 3318, 3370, 3871, 4044, 4718, 4740, 5055, 5530, 6636, 6740, 7077, 7742, 8295, 9436, 10110, 11060, 11613, 11795, 14154, 15484, 16513, 16590, 19355, 20220, 23226, 23590, 26623, 28308, 33026, 33180, 35385, 38710, 46452, 47180, 49539, 53246, 58065, 66052, 70770, 77420, 79869, 82565, 99078, 106492, 116130, 133115, 141540, 159738, 165130, 186361, 198156, 232260, 247695, 266230, 319476, 330260, 372722, 399345, 495390, 532460, 559083, 745444, 798690, 931805, 990780, 1118166, 1304527, 1597380, 1863610, 2236332, 2609054, 2795415, 3727220, 3913581, 5218108, 5590830, 6522635, 7827162, 11181660, 13045270, 15654324, 19567905, 26090540, 39135810, 78271620]

約数ペア:

[(1, 78271620), (2, 39135810), (3, 26090540), (4, 19567905), (5, 15654324), (6, 13045270), (7, 11181660), (10, 7827162), (12, 6522635), (14, 5590830), (15, 5218108), (20, 3913581), (21, 3727220), (28, 2795415), (30, 2609054), (35, 2236332), (42, 1863610), (49, 1597380), (60, 1304527), (70, 1118166), (79, 990780), (84, 931805), (98, 798690), (105, 745444), (140, 559083), (147, 532460), (158, 495390), (196, 399345), (210, 372722), (237, 330260), (245, 319476), (294, 266230), (316, 247695), (337, 232260), (395, 198156), (420, 186361), (474, 165130), (490, 159738), (553, 141540), (588, 133115), (674, 116130), (735, 106492), (790, 99078), (948, 82565), (980, 79869), (1011, 77420), (1106, 70770), (1185, 66052), (1348, 58065), (1470, 53246), (1580, 49539), (1659, 47180), (1685, 46452), (2022, 38710), (2212, 35385), (2359, 33180), (2370, 33026), (2765, 28308), (2940, 26623), (3318, 23590), (3370, 23226), (3871, 20220), (4044, 19355), (4718, 16590), (4740, 16513), (5055, 15484), (5530, 14154), (6636, 11795), (6740, 11613), (7077, 11060), (7742, 10110), (8295, 9436)]