843532720

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{379}}^1\times {\mathrm{647}}^1$

素因数の和:1082

約数の個数: 80

約数和(自身を含む): 2015228160

約数和(自身を除く): 1171695440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 379, 430, 647, 688, 758, 860, 1294, 1516, 1720, 1895, 2588, 3032, 3235, 3440, 3790, 5176, 6064, 6470, 7580, 10352, 12940, 15160, 16297, 25880, 27821, 30320, 32594, 51760, 55642, 65188, 81485, 111284, 130376, 139105, 162970, 222568, 245213, 260752, 278210, 325940, 445136, 490426, 556420, 651880, 980852, 1112840, 1226065, 1303760, 1961704, 2225680, 2452130, 3923408, 4904260, 9808520, 10544159, 19617040, 21088318, 42176636, 52720795, 84353272, 105441590, 168706544, 210883180, 421766360, 843532720]

約数ペア:

[(1, 843532720), (2, 421766360), (4, 210883180), (5, 168706544), (8, 105441590), (10, 84353272), (16, 52720795), (20, 42176636), (40, 21088318), (43, 19617040), (80, 10544159), (86, 9808520), (172, 4904260), (215, 3923408), (344, 2452130), (379, 2225680), (430, 1961704), (647, 1303760), (688, 1226065), (758, 1112840), (860, 980852), (1294, 651880), (1516, 556420), (1720, 490426), (1895, 445136), (2588, 325940), (3032, 278210), (3235, 260752), (3440, 245213), (3790, 222568), (5176, 162970), (6064, 139105), (6470, 130376), (7580, 111284), (10352, 81485), (12940, 65188), (15160, 55642), (16297, 51760), (25880, 32594), (27821, 30320)]