64359100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1597}}^1$

素因数の和:1655

約数の個数: 72

約数和(自身を含む): 155351168

約数和(自身を除く): 90992068

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 124, 130, 155, 260, 310, 325, 403, 620, 650, 775, 806, 1300, 1550, 1597, 1612, 2015, 3100, 3194, 4030, 6388, 7985, 8060, 10075, 15970, 20150, 20761, 31940, 39925, 40300, 41522, 49507, 79850, 83044, 99014, 103805, 159700, 198028, 207610, 247535, 415220, 495070, 519025, 643591, 990140, 1038050, 1237675, 1287182, 2076100, 2475350, 2574364, 3217955, 4950700, 6435910, 12871820, 16089775, 32179550, 64359100]

約数ペア:

[(1, 64359100), (2, 32179550), (4, 16089775), (5, 12871820), (10, 6435910), (13, 4950700), (20, 3217955), (25, 2574364), (26, 2475350), (31, 2076100), (50, 1287182), (52, 1237675), (62, 1038050), (65, 990140), (100, 643591), (124, 519025), (130, 495070), (155, 415220), (260, 247535), (310, 207610), (325, 198028), (403, 159700), (620, 103805), (650, 99014), (775, 83044), (806, 79850), (1300, 49507), (1550, 41522), (1597, 40300), (1612, 39925), (2015, 31940), (3100, 20761), (3194, 20150), (4030, 15970), (6388, 10075), (7985, 8060)]