66291280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1061}}^1$

素因数の和:1156

約数の個数: 80

約数和(自身を含む): 170667648

約数和(自身を除く): 104376368

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 284, 355, 440, 568, 710, 781, 880, 1061, 1136, 1420, 1562, 2122, 2840, 3124, 3905, 4244, 5305, 5680, 6248, 7810, 8488, 10610, 11671, 12496, 15620, 16976, 21220, 23342, 31240, 42440, 46684, 58355, 62480, 75331, 84880, 93368, 116710, 150662, 186736, 233420, 301324, 376655, 466840, 602648, 753310, 828641, 933680, 1205296, 1506620, 1657282, 3013240, 3314564, 4143205, 6026480, 6629128, 8286410, 13258256, 16572820, 33145640, 66291280]

約数ペア:

[(1, 66291280), (2, 33145640), (4, 16572820), (5, 13258256), (8, 8286410), (10, 6629128), (11, 6026480), (16, 4143205), (20, 3314564), (22, 3013240), (40, 1657282), (44, 1506620), (55, 1205296), (71, 933680), (80, 828641), (88, 753310), (110, 602648), (142, 466840), (176, 376655), (220, 301324), (284, 233420), (355, 186736), (440, 150662), (568, 116710), (710, 93368), (781, 84880), (880, 75331), (1061, 62480), (1136, 58355), (1420, 46684), (1562, 42440), (2122, 31240), (2840, 23342), (3124, 21220), (3905, 16976), (4244, 15620), (5305, 12496), (5680, 11671), (6248, 10610), (7810, 8488)]