81259520

素因数分解:

$2^{10}\times 5^1\times {\mathrm{59}}^1\times {\mathrm{269}}^1$

素因数の和:353

約数の個数: 88

約数和(自身を含む): 198968400

約数和(自身を除く): 117708880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 59, 64, 80, 118, 128, 160, 236, 256, 269, 295, 320, 472, 512, 538, 590, 640, 944, 1024, 1076, 1180, 1280, 1345, 1888, 2152, 2360, 2560, 2690, 3776, 4304, 4720, 5120, 5380, 7552, 8608, 9440, 10760, 15104, 15871, 17216, 18880, 21520, 30208, 31742, 34432, 37760, 43040, 60416, 63484, 68864, 75520, 79355, 86080, 126968, 137728, 151040, 158710, 172160, 253936, 275456, 302080, 317420, 344320, 507872, 634840, 688640, 1015744, 1269680, 1377280, 2031488, 2539360, 4062976, 5078720, 8125952, 10157440, 16251904, 20314880, 40629760, 81259520]

約数ペア:

[(1, 81259520), (2, 40629760), (4, 20314880), (5, 16251904), (8, 10157440), (10, 8125952), (16, 5078720), (20, 4062976), (32, 2539360), (40, 2031488), (59, 1377280), (64, 1269680), (80, 1015744), (118, 688640), (128, 634840), (160, 507872), (236, 344320), (256, 317420), (269, 302080), (295, 275456), (320, 253936), (472, 172160), (512, 158710), (538, 151040), (590, 137728), (640, 126968), (944, 86080), (1024, 79355), (1076, 75520), (1180, 68864), (1280, 63484), (1345, 60416), (1888, 43040), (2152, 37760), (2360, 34432), (2560, 31742), (2690, 30208), (3776, 21520), (4304, 18880), (4720, 17216), (5120, 15871), (5380, 15104), (7552, 10760), (8608, 9440)]