212880260

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{223}}^1\times {\mathrm{809}}^1$

素因数の和:1100

約数の個数: 48

約数和(自身を含む): 457228800

約数和(自身を除く): 244348540

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 223, 236, 295, 446, 590, 809, 892, 1115, 1180, 1618, 2230, 3236, 4045, 4460, 8090, 13157, 16180, 26314, 47731, 52628, 65785, 95462, 131570, 180407, 190924, 238655, 263140, 360814, 477310, 721628, 902035, 954620, 1804070, 3608140, 10644013, 21288026, 42576052, 53220065, 106440130, 212880260]

約数ペア:

[(1, 212880260), (2, 106440130), (4, 53220065), (5, 42576052), (10, 21288026), (20, 10644013), (59, 3608140), (118, 1804070), (223, 954620), (236, 902035), (295, 721628), (446, 477310), (590, 360814), (809, 263140), (892, 238655), (1115, 190924), (1180, 180407), (1618, 131570), (2230, 95462), (3236, 65785), (4045, 52628), (4460, 47731), (8090, 26314), (13157, 16180)]