20543400

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{101}}^1\times {\mathrm{113}}^1$

素因数の和:236

約数の個数: 144

約数和(自身を含む): 70291260

約数和(自身を除く): 49747860

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 101, 113, 120, 150, 180, 200, 202, 225, 226, 300, 303, 339, 360, 404, 450, 452, 505, 565, 600, 606, 678, 808, 900, 904, 909, 1010, 1017, 1130, 1212, 1356, 1515, 1695, 1800, 1818, 2020, 2034, 2260, 2424, 2525, 2712, 2825, 3030, 3390, 3636, 4040, 4068, 4520, 4545, 5050, 5085, 5650, 6060, 6780, 7272, 7575, 8136, 8475, 9090, 10100, 10170, 11300, 11413, 12120, 13560, 15150, 16950, 18180, 20200, 20340, 22600, 22725, 22826, 25425, 30300, 33900, 34239, 36360, 40680, 45450, 45652, 50850, 57065, 60600, 67800, 68478, 90900, 91304, 101700, 102717, 114130, 136956, 171195, 181800, 203400, 205434, 228260, 273912, 285325, 342390, 410868, 456520, 513585, 570650, 684780, 821736, 855975, 1027170, 1141300, 1369560, 1711950, 2054340, 2282600, 2567925, 3423900, 4108680, 5135850, 6847800, 10271700, 20543400]

約数ペア:

[(1, 20543400), (2, 10271700), (3, 6847800), (4, 5135850), (5, 4108680), (6, 3423900), (8, 2567925), (9, 2282600), (10, 2054340), (12, 1711950), (15, 1369560), (18, 1141300), (20, 1027170), (24, 855975), (25, 821736), (30, 684780), (36, 570650), (40, 513585), (45, 456520), (50, 410868), (60, 342390), (72, 285325), (75, 273912), (90, 228260), (100, 205434), (101, 203400), (113, 181800), (120, 171195), (150, 136956), (180, 114130), (200, 102717), (202, 101700), (225, 91304), (226, 90900), (300, 68478), (303, 67800), (339, 60600), (360, 57065), (404, 50850), (450, 45652), (452, 45450), (505, 40680), (565, 36360), (600, 34239), (606, 33900), (678, 30300), (808, 25425), (900, 22826), (904, 22725), (909, 22600), (1010, 20340), (1017, 20200), (1130, 18180), (1212, 16950), (1356, 15150), (1515, 13560), (1695, 12120), (1800, 11413), (1818, 11300), (2020, 10170), (2034, 10100), (2260, 9090), (2424, 8475), (2525, 8136), (2712, 7575), (2825, 7272), (3030, 6780), (3390, 6060), (3636, 5650), (4040, 5085), (4068, 5050), (4520, 4545)]