28369960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{167}}^1$

素因数の和:346

約数の個数: 64

約数和(自身を含む): 66769920

約数和(自身を除く): 38399960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 137, 155, 167, 248, 274, 310, 334, 548, 620, 668, 685, 835, 1096, 1240, 1336, 1370, 1670, 2740, 3340, 4247, 5177, 5480, 6680, 8494, 10354, 16988, 20708, 21235, 22879, 25885, 33976, 41416, 42470, 45758, 51770, 84940, 91516, 103540, 114395, 169880, 183032, 207080, 228790, 457580, 709249, 915160, 1418498, 2836996, 3546245, 5673992, 7092490, 14184980, 28369960]

約数ペア:

[(1, 28369960), (2, 14184980), (4, 7092490), (5, 5673992), (8, 3546245), (10, 2836996), (20, 1418498), (31, 915160), (40, 709249), (62, 457580), (124, 228790), (137, 207080), (155, 183032), (167, 169880), (248, 114395), (274, 103540), (310, 91516), (334, 84940), (548, 51770), (620, 45758), (668, 42470), (685, 41416), (835, 33976), (1096, 25885), (1240, 22879), (1336, 21235), (1370, 20708), (1670, 16988), (2740, 10354), (3340, 8494), (4247, 6680), (5177, 5480)]