81877700

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{367}}^1$

素因数の和:501

約数の個数: 72

約数和(自身を含む): 187821312

約数和(自身を除く): 105943612

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 97, 100, 115, 194, 230, 367, 388, 460, 485, 575, 734, 970, 1150, 1468, 1835, 1940, 2231, 2300, 2425, 3670, 4462, 4850, 7340, 8441, 8924, 9175, 9700, 11155, 16882, 18350, 22310, 33764, 35599, 36700, 42205, 44620, 55775, 71198, 84410, 111550, 142396, 168820, 177995, 211025, 223100, 355990, 422050, 711980, 818777, 844100, 889975, 1637554, 1779950, 3275108, 3559900, 4093885, 8187770, 16375540, 20469425, 40938850, 81877700]

約数ペア:

[(1, 81877700), (2, 40938850), (4, 20469425), (5, 16375540), (10, 8187770), (20, 4093885), (23, 3559900), (25, 3275108), (46, 1779950), (50, 1637554), (92, 889975), (97, 844100), (100, 818777), (115, 711980), (194, 422050), (230, 355990), (367, 223100), (388, 211025), (460, 177995), (485, 168820), (575, 142396), (734, 111550), (970, 84410), (1150, 71198), (1468, 55775), (1835, 44620), (1940, 42205), (2231, 36700), (2300, 35599), (2425, 33764), (3670, 22310), (4462, 18350), (4850, 16882), (7340, 11155), (8441, 9700), (8924, 9175)]