84281720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2579}}^1$

素因数の和:2652

約数の個数: 64

約数和(自身を含む): 204336000

約数和(自身を除く): 120054280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 380, 430, 760, 817, 860, 1634, 1720, 2579, 3268, 4085, 5158, 6536, 8170, 10316, 12895, 16340, 20632, 25790, 32680, 49001, 51580, 98002, 103160, 110897, 196004, 221794, 245005, 392008, 443588, 490010, 554485, 887176, 980020, 1108970, 1960040, 2107043, 2217940, 4214086, 4435880, 8428172, 10535215, 16856344, 21070430, 42140860, 84281720]

約数ペア:

[(1, 84281720), (2, 42140860), (4, 21070430), (5, 16856344), (8, 10535215), (10, 8428172), (19, 4435880), (20, 4214086), (38, 2217940), (40, 2107043), (43, 1960040), (76, 1108970), (86, 980020), (95, 887176), (152, 554485), (172, 490010), (190, 443588), (215, 392008), (344, 245005), (380, 221794), (430, 196004), (760, 110897), (817, 103160), (860, 98002), (1634, 51580), (1720, 49001), (2579, 32680), (3268, 25790), (4085, 20632), (5158, 16340), (6536, 12895), (8170, 10316)]