21752040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1663}}^1$

素因数の和:1786

約数の個数: 64

約数和(自身を含む): 65894400

約数和(自身を除く): 44142360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 109, 120, 218, 327, 436, 545, 654, 872, 1090, 1308, 1635, 1663, 2180, 2616, 3270, 3326, 4360, 4989, 6540, 6652, 8315, 9978, 13080, 13304, 16630, 19956, 24945, 33260, 39912, 49890, 66520, 99780, 181267, 199560, 362534, 543801, 725068, 906335, 1087602, 1450136, 1812670, 2175204, 2719005, 3625340, 4350408, 5438010, 7250680, 10876020, 21752040]

約数ペア:

[(1, 21752040), (2, 10876020), (3, 7250680), (4, 5438010), (5, 4350408), (6, 3625340), (8, 2719005), (10, 2175204), (12, 1812670), (15, 1450136), (20, 1087602), (24, 906335), (30, 725068), (40, 543801), (60, 362534), (109, 199560), (120, 181267), (218, 99780), (327, 66520), (436, 49890), (545, 39912), (654, 33260), (872, 24945), (1090, 19956), (1308, 16630), (1635, 13304), (1663, 13080), (2180, 9978), (2616, 8315), (3270, 6652), (3326, 6540), (4360, 4989)]