25097840

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:250

約数の個数: 80

約数和(自身を含む): 61350240

約数和(自身を除く): 36252400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 61, 74, 80, 122, 139, 148, 185, 244, 278, 296, 305, 370, 488, 556, 592, 610, 695, 740, 976, 1112, 1220, 1390, 1480, 2224, 2257, 2440, 2780, 2960, 4514, 4880, 5143, 5560, 8479, 9028, 10286, 11120, 11285, 16958, 18056, 20572, 22570, 25715, 33916, 36112, 41144, 42395, 45140, 51430, 67832, 82288, 84790, 90280, 102860, 135664, 169580, 180560, 205720, 313723, 339160, 411440, 627446, 678320, 1254892, 1568615, 2509784, 3137230, 5019568, 6274460, 12548920, 25097840]

約数ペア:

[(1, 25097840), (2, 12548920), (4, 6274460), (5, 5019568), (8, 3137230), (10, 2509784), (16, 1568615), (20, 1254892), (37, 678320), (40, 627446), (61, 411440), (74, 339160), (80, 313723), (122, 205720), (139, 180560), (148, 169580), (185, 135664), (244, 102860), (278, 90280), (296, 84790), (305, 82288), (370, 67832), (488, 51430), (556, 45140), (592, 42395), (610, 41144), (695, 36112), (740, 33916), (976, 25715), (1112, 22570), (1220, 20572), (1390, 18056), (1480, 16958), (2224, 11285), (2257, 11120), (2440, 10286), (2780, 9028), (2960, 8479), (4514, 5560), (4880, 5143)]