811813120

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{499}}^1$

素因数の和:592

約数の個数: 144

約数和(自身を含む): 2060352000

約数和(自身を除く): 1248538880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 62, 64, 80, 82, 124, 128, 155, 160, 164, 205, 248, 256, 310, 320, 328, 410, 496, 499, 620, 640, 656, 820, 992, 998, 1240, 1271, 1280, 1312, 1640, 1984, 1996, 2480, 2495, 2542, 2624, 3280, 3968, 3992, 4960, 4990, 5084, 5248, 6355, 6560, 7936, 7984, 9920, 9980, 10168, 10496, 12710, 13120, 15469, 15968, 19840, 19960, 20336, 20459, 25420, 26240, 30938, 31936, 39680, 39920, 40672, 40918, 50840, 52480, 61876, 63872, 77345, 79840, 81344, 81836, 101680, 102295, 123752, 127744, 154690, 159680, 162688, 163672, 203360, 204590, 247504, 309380, 319360, 325376, 327344, 406720, 409180, 495008, 618760, 634229, 638720, 654688, 813440, 818360, 990016, 1237520, 1268458, 1309376, 1626880, 1636720, 1980032, 2475040, 2536916, 2618752, 3171145, 3273440, 3960064, 4950080, 5073832, 5237504, 6342290, 6546880, 9900160, 10147664, 12684580, 13093760, 19800320, 20295328, 25369160, 26187520, 40590656, 50738320, 81181312, 101476640, 162362624, 202953280, 405906560, 811813120]

約数ペア:

[(1, 811813120), (2, 405906560), (4, 202953280), (5, 162362624), (8, 101476640), (10, 81181312), (16, 50738320), (20, 40590656), (31, 26187520), (32, 25369160), (40, 20295328), (41, 19800320), (62, 13093760), (64, 12684580), (80, 10147664), (82, 9900160), (124, 6546880), (128, 6342290), (155, 5237504), (160, 5073832), (164, 4950080), (205, 3960064), (248, 3273440), (256, 3171145), (310, 2618752), (320, 2536916), (328, 2475040), (410, 1980032), (496, 1636720), (499, 1626880), (620, 1309376), (640, 1268458), (656, 1237520), (820, 990016), (992, 818360), (998, 813440), (1240, 654688), (1271, 638720), (1280, 634229), (1312, 618760), (1640, 495008), (1984, 409180), (1996, 406720), (2480, 327344), (2495, 325376), (2542, 319360), (2624, 309380), (3280, 247504), (3968, 204590), (3992, 203360), (4960, 163672), (4990, 162688), (5084, 159680), (5248, 154690), (6355, 127744), (6560, 123752), (7936, 102295), (7984, 101680), (9920, 81836), (9980, 81344), (10168, 79840), (10496, 77345), (12710, 63872), (13120, 61876), (15469, 52480), (15968, 50840), (19840, 40918), (19960, 40672), (20336, 39920), (20459, 39680), (25420, 31936), (26240, 30938)]