398496840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{2621}}^1$

素因数の和:2823

約数の個数: 128

約数和(自身を含む): 1374347520

約数和(自身を除く): 975850680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 181, 210, 280, 362, 420, 543, 724, 840, 905, 1086, 1267, 1448, 1810, 2172, 2534, 2621, 2715, 3620, 3801, 4344, 5068, 5242, 5430, 6335, 7240, 7602, 7863, 10136, 10484, 10860, 12670, 13105, 15204, 15726, 18347, 19005, 20968, 21720, 25340, 26210, 30408, 31452, 36694, 38010, 39315, 50680, 52420, 55041, 62904, 73388, 76020, 78630, 91735, 104840, 110082, 146776, 152040, 157260, 183470, 220164, 275205, 314520, 366940, 440328, 474401, 550410, 733880, 948802, 1100820, 1423203, 1897604, 2201640, 2372005, 2846406, 3320807, 3795208, 4744010, 5692812, 6641614, 7116015, 9488020, 9962421, 11385624, 13283228, 14232030, 16604035, 18976040, 19924842, 26566456, 28464060, 33208070, 39849684, 49812105, 56928120, 66416140, 79699368, 99624210, 132832280, 199248420, 398496840]

約数ペア:

[(1, 398496840), (2, 199248420), (3, 132832280), (4, 99624210), (5, 79699368), (6, 66416140), (7, 56928120), (8, 49812105), (10, 39849684), (12, 33208070), (14, 28464060), (15, 26566456), (20, 19924842), (21, 18976040), (24, 16604035), (28, 14232030), (30, 13283228), (35, 11385624), (40, 9962421), (42, 9488020), (56, 7116015), (60, 6641614), (70, 5692812), (84, 4744010), (105, 3795208), (120, 3320807), (140, 2846406), (168, 2372005), (181, 2201640), (210, 1897604), (280, 1423203), (362, 1100820), (420, 948802), (543, 733880), (724, 550410), (840, 474401), (905, 440328), (1086, 366940), (1267, 314520), (1448, 275205), (1810, 220164), (2172, 183470), (2534, 157260), (2621, 152040), (2715, 146776), (3620, 110082), (3801, 104840), (4344, 91735), (5068, 78630), (5242, 76020), (5430, 73388), (6335, 62904), (7240, 55041), (7602, 52420), (7863, 50680), (10136, 39315), (10484, 38010), (10860, 36694), (12670, 31452), (13105, 30408), (15204, 26210), (15726, 25340), (18347, 21720), (19005, 20968)]