51208040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:187

約数の個数: 128

約数和(自身を含む): 134265600

約数和(自身を除く): 83057560

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 71, 73, 76, 95, 104, 130, 142, 146, 152, 190, 247, 260, 284, 292, 355, 365, 380, 494, 520, 568, 584, 710, 730, 760, 923, 949, 988, 1235, 1349, 1387, 1420, 1460, 1846, 1898, 1976, 2470, 2698, 2774, 2840, 2920, 3692, 3796, 4615, 4745, 4940, 5183, 5396, 5548, 6745, 6935, 7384, 7592, 9230, 9490, 9880, 10366, 10792, 11096, 13490, 13870, 17537, 18031, 18460, 18980, 20732, 25915, 26980, 27740, 35074, 36062, 36920, 37960, 41464, 51830, 53960, 55480, 67379, 70148, 72124, 87685, 90155, 98477, 103660, 134758, 140296, 144248, 175370, 180310, 196954, 207320, 269516, 336895, 350740, 360620, 393908, 492385, 539032, 673790, 701480, 721240, 787816, 984770, 1280201, 1347580, 1969540, 2560402, 2695160, 3939080, 5120804, 6401005, 10241608, 12802010, 25604020, 51208040]

約数ペア:

[(1, 51208040), (2, 25604020), (4, 12802010), (5, 10241608), (8, 6401005), (10, 5120804), (13, 3939080), (19, 2695160), (20, 2560402), (26, 1969540), (38, 1347580), (40, 1280201), (52, 984770), (65, 787816), (71, 721240), (73, 701480), (76, 673790), (95, 539032), (104, 492385), (130, 393908), (142, 360620), (146, 350740), (152, 336895), (190, 269516), (247, 207320), (260, 196954), (284, 180310), (292, 175370), (355, 144248), (365, 140296), (380, 134758), (494, 103660), (520, 98477), (568, 90155), (584, 87685), (710, 72124), (730, 70148), (760, 67379), (923, 55480), (949, 53960), (988, 51830), (1235, 41464), (1349, 37960), (1387, 36920), (1420, 36062), (1460, 35074), (1846, 27740), (1898, 26980), (1976, 25915), (2470, 20732), (2698, 18980), (2774, 18460), (2840, 18031), (2920, 17537), (3692, 13870), (3796, 13490), (4615, 11096), (4745, 10792), (4940, 10366), (5183, 9880), (5396, 9490), (5548, 9230), (6745, 7592), (6935, 7384)]