51219440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1087}}^1$

素因数の和:1150

約数の個数: 80

約数和(自身を含む): 129515520

約数和(自身を除く): 78296080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 380, 496, 589, 620, 760, 1087, 1178, 1240, 1520, 2174, 2356, 2480, 2945, 4348, 4712, 5435, 5890, 8696, 9424, 10870, 11780, 17392, 20653, 21740, 23560, 33697, 41306, 43480, 47120, 67394, 82612, 86960, 103265, 134788, 165224, 168485, 206530, 269576, 330448, 336970, 413060, 539152, 640243, 673940, 826120, 1280486, 1347880, 1652240, 2560972, 2695760, 3201215, 5121944, 6402430, 10243888, 12804860, 25609720, 51219440]

約数ペア:

[(1, 51219440), (2, 25609720), (4, 12804860), (5, 10243888), (8, 6402430), (10, 5121944), (16, 3201215), (19, 2695760), (20, 2560972), (31, 1652240), (38, 1347880), (40, 1280486), (62, 826120), (76, 673940), (80, 640243), (95, 539152), (124, 413060), (152, 336970), (155, 330448), (190, 269576), (248, 206530), (304, 168485), (310, 165224), (380, 134788), (496, 103265), (589, 86960), (620, 82612), (760, 67394), (1087, 47120), (1178, 43480), (1240, 41306), (1520, 33697), (2174, 23560), (2356, 21740), (2480, 20653), (2945, 17392), (4348, 11780), (4712, 10870), (5435, 9424), (5890, 8696)]