290765240

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{881}}^1$

素因数の和:1152

約数の個数: 64

約数和(自身を含む): 675682560

約数和(自身を除く): 384917320

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 223, 296, 370, 446, 740, 881, 892, 1115, 1480, 1762, 1784, 2230, 3524, 4405, 4460, 7048, 8251, 8810, 8920, 16502, 17620, 32597, 33004, 35240, 41255, 65194, 66008, 82510, 130388, 162985, 165020, 196463, 260776, 325970, 330040, 392926, 651940, 785852, 982315, 1303880, 1571704, 1964630, 3929260, 7269131, 7858520, 14538262, 29076524, 36345655, 58153048, 72691310, 145382620, 290765240]

約数ペア:

[(1, 290765240), (2, 145382620), (4, 72691310), (5, 58153048), (8, 36345655), (10, 29076524), (20, 14538262), (37, 7858520), (40, 7269131), (74, 3929260), (148, 1964630), (185, 1571704), (223, 1303880), (296, 982315), (370, 785852), (446, 651940), (740, 392926), (881, 330040), (892, 325970), (1115, 260776), (1480, 196463), (1762, 165020), (1784, 162985), (2230, 130388), (3524, 82510), (4405, 66008), (4460, 65194), (7048, 41255), (8251, 35240), (8810, 33004), (8920, 32597), (16502, 17620)]