81880320

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{21323}}^1$

素因数の和:21347

約数の個数: 72

約数和(自身を含む): 261517536

約数和(自身を除く): 179637216

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 21323, 42646, 63969, 85292, 106615, 127938, 170584, 213230, 255876, 319845, 341168, 426460, 511752, 639690, 682336, 852920, 1023504, 1279380, 1364672, 1705840, 2047008, 2558760, 2729344, 3411680, 4094016, 5117520, 5458688, 6823360, 8188032, 10235040, 13646720, 16376064, 20470080, 27293440, 40940160, 81880320]

約数ペア:

[(1, 81880320), (2, 40940160), (3, 27293440), (4, 20470080), (5, 16376064), (6, 13646720), (8, 10235040), (10, 8188032), (12, 6823360), (15, 5458688), (16, 5117520), (20, 4094016), (24, 3411680), (30, 2729344), (32, 2558760), (40, 2047008), (48, 1705840), (60, 1364672), (64, 1279380), (80, 1023504), (96, 852920), (120, 682336), (128, 639690), (160, 511752), (192, 426460), (240, 341168), (256, 319845), (320, 255876), (384, 213230), (480, 170584), (640, 127938), (768, 106615), (960, 85292), (1280, 63969), (1920, 42646), (3840, 21323)]