12548920

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 29685600

約数和(自身を除く): 17136680

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 61, 74, 122, 139, 148, 185, 244, 278, 296, 305, 370, 488, 556, 610, 695, 740, 1112, 1220, 1390, 1480, 2257, 2440, 2780, 4514, 5143, 5560, 8479, 9028, 10286, 11285, 16958, 18056, 20572, 22570, 25715, 33916, 41144, 42395, 45140, 51430, 67832, 84790, 90280, 102860, 169580, 205720, 313723, 339160, 627446, 1254892, 1568615, 2509784, 3137230, 6274460, 12548920]

約数ペア:

[(1, 12548920), (2, 6274460), (4, 3137230), (5, 2509784), (8, 1568615), (10, 1254892), (20, 627446), (37, 339160), (40, 313723), (61, 205720), (74, 169580), (122, 102860), (139, 90280), (148, 84790), (185, 67832), (244, 51430), (278, 45140), (296, 42395), (305, 41144), (370, 33916), (488, 25715), (556, 22570), (610, 20572), (695, 18056), (740, 16958), (1112, 11285), (1220, 10286), (1390, 9028), (1480, 8479), (2257, 5560), (2440, 5143), (2780, 4514)]