818756120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5231}}^1$

素因数の和:5305

約数の個数: 128

約数和(自身を含む): 2320496640

約数和(自身を除く): 1501740520

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 43, 52, 56, 65, 70, 86, 91, 104, 130, 140, 172, 182, 215, 260, 280, 301, 344, 364, 430, 455, 520, 559, 602, 728, 860, 910, 1118, 1204, 1505, 1720, 1820, 2236, 2408, 2795, 3010, 3640, 3913, 4472, 5231, 5590, 6020, 7826, 10462, 11180, 12040, 15652, 19565, 20924, 22360, 26155, 31304, 36617, 39130, 41848, 52310, 68003, 73234, 78260, 104620, 136006, 146468, 156520, 183085, 209240, 224933, 272012, 292936, 340015, 366170, 449866, 476021, 544024, 680030, 732340, 899732, 952042, 1124665, 1360060, 1464680, 1574531, 1799464, 1904084, 2249330, 2380105, 2720120, 2924129, 3149062, 3808168, 4498660, 4760210, 5848258, 6298124, 7872655, 8997320, 9520420, 11696516, 12596248, 14620645, 15745310, 19040840, 20468903, 23393032, 29241290, 31490620, 40937806, 58482580, 62981240, 81875612, 102344515, 116965160, 163751224, 204689030, 409378060, 818756120]

約数ペア:

[(1, 818756120), (2, 409378060), (4, 204689030), (5, 163751224), (7, 116965160), (8, 102344515), (10, 81875612), (13, 62981240), (14, 58482580), (20, 40937806), (26, 31490620), (28, 29241290), (35, 23393032), (40, 20468903), (43, 19040840), (52, 15745310), (56, 14620645), (65, 12596248), (70, 11696516), (86, 9520420), (91, 8997320), (104, 7872655), (130, 6298124), (140, 5848258), (172, 4760210), (182, 4498660), (215, 3808168), (260, 3149062), (280, 2924129), (301, 2720120), (344, 2380105), (364, 2249330), (430, 1904084), (455, 1799464), (520, 1574531), (559, 1464680), (602, 1360060), (728, 1124665), (860, 952042), (910, 899732), (1118, 732340), (1204, 680030), (1505, 544024), (1720, 476021), (1820, 449866), (2236, 366170), (2408, 340015), (2795, 292936), (3010, 272012), (3640, 224933), (3913, 209240), (4472, 183085), (5231, 156520), (5590, 146468), (6020, 136006), (7826, 104620), (10462, 78260), (11180, 73234), (12040, 68003), (15652, 52310), (19565, 41848), (20924, 39130), (22360, 36617), (26155, 31304)]