20808515494

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{409}}^1\times {\mathrm{569}}^1$

素因数の和:1193

約数の個数: 64

約数和(自身を含む): 35728056000

約数和(自身を除く): 14919540506

約数列:

[1, 2, 13, 19, 26, 38, 181, 247, 362, 409, 494, 569, 818, 1138, 2353, 3439, 4706, 5317, 6878, 7397, 7771, 10634, 10811, 14794, 15542, 21622, 44707, 74029, 89414, 101023, 102989, 140543, 148058, 202046, 205978, 232721, 281086, 465442, 962377, 1338857, 1406551, 1924754, 1956791, 2677714, 2813102, 3025373, 3913582, 4421699, 6050746, 8843398, 18285163, 25438283, 36570326, 42122501, 50876566, 57482087, 84245002, 114964174, 547592513, 800327519, 1095185026, 1600655038, 10404257747, 20808515494]

約数ペア:

[(1, 20808515494), (2, 10404257747), (13, 1600655038), (19, 1095185026), (26, 800327519), (38, 547592513), (181, 114964174), (247, 84245002), (362, 57482087), (409, 50876566), (494, 42122501), (569, 36570326), (818, 25438283), (1138, 18285163), (2353, 8843398), (3439, 6050746), (4706, 4421699), (5317, 3913582), (6878, 3025373), (7397, 2813102), (7771, 2677714), (10634, 1956791), (10811, 1924754), (14794, 1406551), (15542, 1338857), (21622, 962377), (44707, 465442), (74029, 281086), (89414, 232721), (101023, 205978), (102989, 202046), (140543, 148058)]