81573520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{5023}}^1$

素因数の和:5072

約数の個数: 80

約数和(自身を含む): 224271360

約数和(自身を除く): 142697840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 56, 58, 70, 80, 112, 116, 140, 145, 203, 232, 280, 290, 406, 464, 560, 580, 812, 1015, 1160, 1624, 2030, 2320, 3248, 4060, 5023, 8120, 10046, 16240, 20092, 25115, 35161, 40184, 50230, 70322, 80368, 100460, 140644, 145667, 175805, 200920, 281288, 291334, 351610, 401840, 562576, 582668, 703220, 728335, 1019669, 1165336, 1406440, 1456670, 2039338, 2330672, 2812880, 2913340, 4078676, 5098345, 5826680, 8157352, 10196690, 11653360, 16314704, 20393380, 40786760, 81573520]

約数ペア:

[(1, 81573520), (2, 40786760), (4, 20393380), (5, 16314704), (7, 11653360), (8, 10196690), (10, 8157352), (14, 5826680), (16, 5098345), (20, 4078676), (28, 2913340), (29, 2812880), (35, 2330672), (40, 2039338), (56, 1456670), (58, 1406440), (70, 1165336), (80, 1019669), (112, 728335), (116, 703220), (140, 582668), (145, 562576), (203, 401840), (232, 351610), (280, 291334), (290, 281288), (406, 200920), (464, 175805), (560, 145667), (580, 140644), (812, 100460), (1015, 80368), (1160, 70322), (1624, 50230), (2030, 40184), (2320, 35161), (3248, 25115), (4060, 20092), (5023, 16240), (8120, 10046)]