648804780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{14593}}^1$

素因数の和:14640

約数の個数: 144

約数和(自身を含む): 2231130720

約数和(自身を除く): 1582325940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 30, 36, 38, 39, 45, 52, 57, 60, 65, 76, 78, 90, 95, 114, 117, 130, 156, 171, 180, 190, 195, 228, 234, 247, 260, 285, 342, 380, 390, 468, 494, 570, 585, 684, 741, 780, 855, 988, 1140, 1170, 1235, 1482, 1710, 2223, 2340, 2470, 2964, 3420, 3705, 4446, 4940, 7410, 8892, 11115, 14593, 14820, 22230, 29186, 43779, 44460, 58372, 72965, 87558, 131337, 145930, 175116, 189709, 218895, 262674, 277267, 291860, 379418, 437790, 525348, 554534, 569127, 656685, 758836, 831801, 875580, 948545, 1109068, 1138254, 1313370, 1386335, 1663602, 1707381, 1897090, 2276508, 2495403, 2626740, 2772670, 2845635, 3327204, 3414762, 3604471, 3794180, 4159005, 4990806, 5545340, 5691270, 6829524, 7208942, 8318010, 8536905, 9981612, 10813413, 11382540, 12477015, 14417884, 16636020, 17073810, 18022355, 21626826, 24954030, 32440239, 34147620, 36044710, 43253652, 49908060, 54067065, 64880478, 72089420, 108134130, 129760956, 162201195, 216268260, 324402390, 648804780]

約数ペア:

[(1, 648804780), (2, 324402390), (3, 216268260), (4, 162201195), (5, 129760956), (6, 108134130), (9, 72089420), (10, 64880478), (12, 54067065), (13, 49908060), (15, 43253652), (18, 36044710), (19, 34147620), (20, 32440239), (26, 24954030), (30, 21626826), (36, 18022355), (38, 17073810), (39, 16636020), (45, 14417884), (52, 12477015), (57, 11382540), (60, 10813413), (65, 9981612), (76, 8536905), (78, 8318010), (90, 7208942), (95, 6829524), (114, 5691270), (117, 5545340), (130, 4990806), (156, 4159005), (171, 3794180), (180, 3604471), (190, 3414762), (195, 3327204), (228, 2845635), (234, 2772670), (247, 2626740), (260, 2495403), (285, 2276508), (342, 1897090), (380, 1707381), (390, 1663602), (468, 1386335), (494, 1313370), (570, 1138254), (585, 1109068), (684, 948545), (741, 875580), (780, 831801), (855, 758836), (988, 656685), (1140, 569127), (1170, 554534), (1235, 525348), (1482, 437790), (1710, 379418), (2223, 291860), (2340, 277267), (2470, 262674), (2964, 218895), (3420, 189709), (3705, 175116), (4446, 145930), (4940, 131337), (7410, 87558), (8892, 72965), (11115, 58372), (14593, 44460), (14820, 43779), (22230, 29186)]