25604020

素因数分解:

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

素因数の和:185

約数の個数: 96

約数和(自身を含む): 62657280

約数和(自身を除く): 37053260

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 71, 73, 76, 95, 130, 142, 146, 190, 247, 260, 284, 292, 355, 365, 380, 494, 710, 730, 923, 949, 988, 1235, 1349, 1387, 1420, 1460, 1846, 1898, 2470, 2698, 2774, 3692, 3796, 4615, 4745, 4940, 5183, 5396, 5548, 6745, 6935, 9230, 9490, 10366, 13490, 13870, 17537, 18031, 18460, 18980, 20732, 25915, 26980, 27740, 35074, 36062, 51830, 67379, 70148, 72124, 87685, 90155, 98477, 103660, 134758, 175370, 180310, 196954, 269516, 336895, 350740, 360620, 393908, 492385, 673790, 984770, 1280201, 1347580, 1969540, 2560402, 5120804, 6401005, 12802010, 25604020]

約数ペア:

[(1, 25604020), (2, 12802010), (4, 6401005), (5, 5120804), (10, 2560402), (13, 1969540), (19, 1347580), (20, 1280201), (26, 984770), (38, 673790), (52, 492385), (65, 393908), (71, 360620), (73, 350740), (76, 336895), (95, 269516), (130, 196954), (142, 180310), (146, 175370), (190, 134758), (247, 103660), (260, 98477), (284, 90155), (292, 87685), (355, 72124), (365, 70148), (380, 67379), (494, 51830), (710, 36062), (730, 35074), (923, 27740), (949, 26980), (988, 25915), (1235, 20732), (1349, 18980), (1387, 18460), (1420, 18031), (1460, 17537), (1846, 13870), (1898, 13490), (2470, 10366), (2698, 9490), (2774, 9230), (3692, 6935), (3796, 6745), (4615, 5548), (4745, 5396), (4940, 5183)]