6409880

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 15266880

約数和(自身を除く): 8857000

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 61, 71, 74, 122, 142, 148, 185, 244, 284, 296, 305, 355, 370, 488, 568, 610, 710, 740, 1220, 1420, 1480, 2257, 2440, 2627, 2840, 4331, 4514, 5254, 8662, 9028, 10508, 11285, 13135, 17324, 18056, 21016, 21655, 22570, 26270, 34648, 43310, 45140, 52540, 86620, 90280, 105080, 160247, 173240, 320494, 640988, 801235, 1281976, 1602470, 3204940, 6409880]

約数ペア:

[(1, 6409880), (2, 3204940), (4, 1602470), (5, 1281976), (8, 801235), (10, 640988), (20, 320494), (37, 173240), (40, 160247), (61, 105080), (71, 90280), (74, 86620), (122, 52540), (142, 45140), (148, 43310), (185, 34648), (244, 26270), (284, 22570), (296, 21655), (305, 21016), (355, 18056), (370, 17324), (488, 13135), (568, 11285), (610, 10508), (710, 9028), (740, 8662), (1220, 5254), (1420, 4514), (1480, 4331), (2257, 2840), (2440, 2627)]