78853480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1901}}^1$

素因数の和:1990

約数の個数: 64

約数和(自身を含む): 191036880

約数和(自身を除く): 112183400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 61, 68, 85, 122, 136, 170, 244, 305, 340, 488, 610, 680, 1037, 1220, 1901, 2074, 2440, 3802, 4148, 5185, 7604, 8296, 9505, 10370, 15208, 19010, 20740, 32317, 38020, 41480, 64634, 76040, 115961, 129268, 161585, 231922, 258536, 323170, 463844, 579805, 646340, 927688, 1159610, 1292680, 1971337, 2319220, 3942674, 4638440, 7885348, 9856685, 15770696, 19713370, 39426740, 78853480]

約数ペア:

[(1, 78853480), (2, 39426740), (4, 19713370), (5, 15770696), (8, 9856685), (10, 7885348), (17, 4638440), (20, 3942674), (34, 2319220), (40, 1971337), (61, 1292680), (68, 1159610), (85, 927688), (122, 646340), (136, 579805), (170, 463844), (244, 323170), (305, 258536), (340, 231922), (488, 161585), (610, 129268), (680, 115961), (1037, 76040), (1220, 64634), (1901, 41480), (2074, 38020), (2440, 32317), (3802, 20740), (4148, 19010), (5185, 15208), (7604, 10370), (8296, 9505)]