12819760

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:182

約数の個数: 80

約数和(自身を含む): 31551552

約数和(自身を除く): 18731792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 61, 71, 74, 80, 122, 142, 148, 185, 244, 284, 296, 305, 355, 370, 488, 568, 592, 610, 710, 740, 976, 1136, 1220, 1420, 1480, 2257, 2440, 2627, 2840, 2960, 4331, 4514, 4880, 5254, 5680, 8662, 9028, 10508, 11285, 13135, 17324, 18056, 21016, 21655, 22570, 26270, 34648, 36112, 42032, 43310, 45140, 52540, 69296, 86620, 90280, 105080, 160247, 173240, 180560, 210160, 320494, 346480, 640988, 801235, 1281976, 1602470, 2563952, 3204940, 6409880, 12819760]

約数ペア:

[(1, 12819760), (2, 6409880), (4, 3204940), (5, 2563952), (8, 1602470), (10, 1281976), (16, 801235), (20, 640988), (37, 346480), (40, 320494), (61, 210160), (71, 180560), (74, 173240), (80, 160247), (122, 105080), (142, 90280), (148, 86620), (185, 69296), (244, 52540), (284, 45140), (296, 43310), (305, 42032), (355, 36112), (370, 34648), (488, 26270), (568, 22570), (592, 21655), (610, 21016), (710, 18056), (740, 17324), (976, 13135), (1136, 11285), (1220, 10508), (1420, 9028), (1480, 8662), (2257, 5680), (2440, 5254), (2627, 4880), (2840, 4514), (2960, 4331)]