199715640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1451}}^1$

素因数の和:1533

約数の個数: 128

約数和(自身を含む): 635627520

約数和(自身を除く): 435911880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 37, 40, 60, 62, 74, 93, 111, 120, 124, 148, 155, 185, 186, 222, 248, 296, 310, 370, 372, 444, 465, 555, 620, 740, 744, 888, 930, 1110, 1147, 1240, 1451, 1480, 1860, 2220, 2294, 2902, 3441, 3720, 4353, 4440, 4588, 5735, 5804, 6882, 7255, 8706, 9176, 11470, 11608, 13764, 14510, 17205, 17412, 21765, 22940, 27528, 29020, 34410, 34824, 43530, 44981, 45880, 53687, 58040, 68820, 87060, 89962, 107374, 134943, 137640, 161061, 174120, 179924, 214748, 224905, 268435, 269886, 322122, 359848, 429496, 449810, 536870, 539772, 644244, 674715, 805305, 899620, 1073740, 1079544, 1288488, 1349430, 1610610, 1664297, 1799240, 2147480, 2698860, 3221220, 3328594, 4992891, 5397720, 6442440, 6657188, 8321485, 9985782, 13314376, 16642970, 19971564, 24964455, 33285940, 39943128, 49928910, 66571880, 99857820, 199715640]

約数ペア:

[(1, 199715640), (2, 99857820), (3, 66571880), (4, 49928910), (5, 39943128), (6, 33285940), (8, 24964455), (10, 19971564), (12, 16642970), (15, 13314376), (20, 9985782), (24, 8321485), (30, 6657188), (31, 6442440), (37, 5397720), (40, 4992891), (60, 3328594), (62, 3221220), (74, 2698860), (93, 2147480), (111, 1799240), (120, 1664297), (124, 1610610), (148, 1349430), (155, 1288488), (185, 1079544), (186, 1073740), (222, 899620), (248, 805305), (296, 674715), (310, 644244), (370, 539772), (372, 536870), (444, 449810), (465, 429496), (555, 359848), (620, 322122), (740, 269886), (744, 268435), (888, 224905), (930, 214748), (1110, 179924), (1147, 174120), (1240, 161061), (1451, 137640), (1480, 134943), (1860, 107374), (2220, 89962), (2294, 87060), (2902, 68820), (3441, 58040), (3720, 53687), (4353, 45880), (4440, 44981), (4588, 43530), (5735, 34824), (5804, 34410), (6882, 29020), (7255, 27528), (8706, 22940), (9176, 21765), (11470, 17412), (11608, 17205), (13764, 14510)]