31809680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1321}}^1$

素因数の和:1384

約数の個数: 80

約数和(自身を含む): 86553984

約数和(自身を除く): 54744304

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 56, 70, 80, 86, 112, 140, 172, 215, 280, 301, 344, 430, 560, 602, 688, 860, 1204, 1321, 1505, 1720, 2408, 2642, 3010, 3440, 4816, 5284, 6020, 6605, 9247, 10568, 12040, 13210, 18494, 21136, 24080, 26420, 36988, 46235, 52840, 56803, 73976, 92470, 105680, 113606, 147952, 184940, 227212, 284015, 369880, 397621, 454424, 568030, 739760, 795242, 908848, 1136060, 1590484, 1988105, 2272120, 3180968, 3976210, 4544240, 6361936, 7952420, 15904840, 31809680]

約数ペア:

[(1, 31809680), (2, 15904840), (4, 7952420), (5, 6361936), (7, 4544240), (8, 3976210), (10, 3180968), (14, 2272120), (16, 1988105), (20, 1590484), (28, 1136060), (35, 908848), (40, 795242), (43, 739760), (56, 568030), (70, 454424), (80, 397621), (86, 369880), (112, 284015), (140, 227212), (172, 184940), (215, 147952), (280, 113606), (301, 105680), (344, 92470), (430, 73976), (560, 56803), (602, 52840), (688, 46235), (860, 36988), (1204, 26420), (1321, 24080), (1505, 21136), (1720, 18494), (2408, 13210), (2642, 12040), (3010, 10568), (3440, 9247), (4816, 6605), (5284, 6020)]