263965520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{359}}^1$

素因数の和:493

約数の個数: 160

約数和(自身を含む): 764951040

約数和(自身を除く): 500985520

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 101, 104, 112, 130, 140, 182, 202, 208, 260, 280, 359, 364, 404, 455, 505, 520, 560, 707, 718, 728, 808, 910, 1010, 1040, 1313, 1414, 1436, 1456, 1616, 1795, 1820, 2020, 2513, 2626, 2828, 2872, 3535, 3590, 3640, 4040, 4667, 5026, 5252, 5656, 5744, 6565, 7070, 7180, 7280, 8080, 9191, 9334, 10052, 10504, 11312, 12565, 13130, 14140, 14360, 18382, 18668, 20104, 21008, 23335, 25130, 26260, 28280, 28720, 32669, 36259, 36764, 37336, 40208, 45955, 46670, 50260, 52520, 56560, 65338, 72518, 73528, 74672, 91910, 93340, 100520, 105040, 130676, 145036, 147056, 163345, 181295, 183820, 186680, 201040, 253813, 261352, 290072, 326690, 362590, 367640, 373360, 471367, 507626, 522704, 580144, 653380, 725180, 735280, 942734, 1015252, 1269065, 1306760, 1450360, 1885468, 2030504, 2356835, 2538130, 2613520, 2900720, 3299569, 3770936, 4061008, 4713670, 5076260, 6599138, 7541872, 9427340, 10152520, 13198276, 16497845, 18854680, 20305040, 26396552, 32995690, 37709360, 52793104, 65991380, 131982760, 263965520]

約数ペア:

[(1, 263965520), (2, 131982760), (4, 65991380), (5, 52793104), (7, 37709360), (8, 32995690), (10, 26396552), (13, 20305040), (14, 18854680), (16, 16497845), (20, 13198276), (26, 10152520), (28, 9427340), (35, 7541872), (40, 6599138), (52, 5076260), (56, 4713670), (65, 4061008), (70, 3770936), (80, 3299569), (91, 2900720), (101, 2613520), (104, 2538130), (112, 2356835), (130, 2030504), (140, 1885468), (182, 1450360), (202, 1306760), (208, 1269065), (260, 1015252), (280, 942734), (359, 735280), (364, 725180), (404, 653380), (455, 580144), (505, 522704), (520, 507626), (560, 471367), (707, 373360), (718, 367640), (728, 362590), (808, 326690), (910, 290072), (1010, 261352), (1040, 253813), (1313, 201040), (1414, 186680), (1436, 183820), (1456, 181295), (1616, 163345), (1795, 147056), (1820, 145036), (2020, 130676), (2513, 105040), (2626, 100520), (2828, 93340), (2872, 91910), (3535, 74672), (3590, 73528), (3640, 72518), (4040, 65338), (4667, 56560), (5026, 52520), (5252, 50260), (5656, 46670), (5744, 45955), (6565, 40208), (7070, 37336), (7180, 36764), (7280, 36259), (8080, 32669), (9191, 28720), (9334, 28280), (10052, 26260), (10504, 25130), (11312, 23335), (12565, 21008), (13130, 20104), (14140, 18668), (14360, 18382)]