78918850

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{281}}^1$

素因数の和:471

約数の個数: 48

約数和(自身を含む): 152005896

約数和(自身を除く): 73087046

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 137, 205, 274, 281, 410, 562, 685, 1025, 1370, 1405, 2050, 2810, 3425, 5617, 6850, 7025, 11234, 11521, 14050, 23042, 28085, 38497, 56170, 57605, 76994, 115210, 140425, 192485, 280850, 288025, 384970, 576050, 962425, 1578377, 1924850, 3156754, 7891885, 15783770, 39459425, 78918850]

約数ペア:

[(1, 78918850), (2, 39459425), (5, 15783770), (10, 7891885), (25, 3156754), (41, 1924850), (50, 1578377), (82, 962425), (137, 576050), (205, 384970), (274, 288025), (281, 280850), (410, 192485), (562, 140425), (685, 115210), (1025, 76994), (1370, 57605), (1405, 56170), (2050, 38497), (2810, 28085), (3425, 23042), (5617, 14050), (6850, 11521), (7025, 11234)]