55278520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1721}}^1$

素因数の和:1816

約数の個数: 64

約数和(自身を含む): 137622240

約数和(自身を除く): 82343720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 73, 88, 110, 146, 220, 292, 365, 440, 584, 730, 803, 1460, 1606, 1721, 2920, 3212, 3442, 4015, 6424, 6884, 8030, 8605, 13768, 16060, 17210, 18931, 32120, 34420, 37862, 68840, 75724, 94655, 125633, 151448, 189310, 251266, 378620, 502532, 628165, 757240, 1005064, 1256330, 1381963, 2512660, 2763926, 5025320, 5527852, 6909815, 11055704, 13819630, 27639260, 55278520]

約数ペア:

[(1, 55278520), (2, 27639260), (4, 13819630), (5, 11055704), (8, 6909815), (10, 5527852), (11, 5025320), (20, 2763926), (22, 2512660), (40, 1381963), (44, 1256330), (55, 1005064), (73, 757240), (88, 628165), (110, 502532), (146, 378620), (220, 251266), (292, 189310), (365, 151448), (440, 125633), (584, 94655), (730, 75724), (803, 68840), (1460, 37862), (1606, 34420), (1721, 32120), (2920, 18931), (3212, 17210), (3442, 16060), (4015, 13768), (6424, 8605), (6884, 8030)]