20697120

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{1597}}^1$

素因数の和:1624

約数の個数: 120

約数和(自身を含む): 73089324

約数和(自身を除く): 52392204

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 270, 288, 324, 360, 405, 432, 480, 540, 648, 720, 810, 864, 1080, 1296, 1440, 1597, 1620, 2160, 2592, 3194, 3240, 4320, 4791, 6388, 6480, 7985, 9582, 12776, 12960, 14373, 15970, 19164, 23955, 25552, 28746, 31940, 38328, 43119, 47910, 51104, 57492, 63880, 71865, 76656, 86238, 95820, 114984, 127760, 129357, 143730, 153312, 172476, 191640, 215595, 229968, 255520, 258714, 287460, 344952, 383280, 431190, 459936, 517428, 574920, 646785, 689904, 766560, 862380, 1034856, 1149840, 1293570, 1379808, 1724760, 2069712, 2299680, 2587140, 3449520, 4139424, 5174280, 6899040, 10348560, 20697120]

約数ペア:

[(1, 20697120), (2, 10348560), (3, 6899040), (4, 5174280), (5, 4139424), (6, 3449520), (8, 2587140), (9, 2299680), (10, 2069712), (12, 1724760), (15, 1379808), (16, 1293570), (18, 1149840), (20, 1034856), (24, 862380), (27, 766560), (30, 689904), (32, 646785), (36, 574920), (40, 517428), (45, 459936), (48, 431190), (54, 383280), (60, 344952), (72, 287460), (80, 258714), (81, 255520), (90, 229968), (96, 215595), (108, 191640), (120, 172476), (135, 153312), (144, 143730), (160, 129357), (162, 127760), (180, 114984), (216, 95820), (240, 86238), (270, 76656), (288, 71865), (324, 63880), (360, 57492), (405, 51104), (432, 47910), (480, 43119), (540, 38328), (648, 31940), (720, 28746), (810, 25552), (864, 23955), (1080, 19164), (1296, 15970), (1440, 14373), (1597, 12960), (1620, 12776), (2160, 9582), (2592, 7985), (3194, 6480), (3240, 6388), (4320, 4791)]