199320080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{449}}^1$

素因数の和:672

約数の個数: 80

約数和(自身を含む): 482112000

約数和(自身を除く): 282791920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 179, 248, 310, 358, 449, 496, 620, 716, 895, 898, 1240, 1432, 1790, 1796, 2245, 2480, 2864, 3580, 3592, 4490, 5549, 7160, 7184, 8980, 11098, 13919, 14320, 17960, 22196, 27745, 27838, 35920, 44392, 55490, 55676, 69595, 80371, 88784, 110980, 111352, 139190, 160742, 221960, 222704, 278380, 321484, 401855, 443920, 556760, 642968, 803710, 1113520, 1285936, 1607420, 2491501, 3214840, 4983002, 6429680, 9966004, 12457505, 19932008, 24915010, 39864016, 49830020, 99660040, 199320080]

約数ペア:

[(1, 199320080), (2, 99660040), (4, 49830020), (5, 39864016), (8, 24915010), (10, 19932008), (16, 12457505), (20, 9966004), (31, 6429680), (40, 4983002), (62, 3214840), (80, 2491501), (124, 1607420), (155, 1285936), (179, 1113520), (248, 803710), (310, 642968), (358, 556760), (449, 443920), (496, 401855), (620, 321484), (716, 278380), (895, 222704), (898, 221960), (1240, 160742), (1432, 139190), (1790, 111352), (1796, 110980), (2245, 88784), (2480, 80371), (2864, 69595), (3580, 55676), (3592, 55490), (4490, 44392), (5549, 35920), (7160, 27838), (7184, 27745), (8980, 22196), (11098, 17960), (13919, 14320)]