15904840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1321}}^1$

素因数の和:1382

約数の個数: 64

約数和(自身を含む): 41880960

約数和(自身を除く): 25976120

約数列:

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

約数ペア:

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