208023135

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:364

約数の個数: 64

約数和(自身を含む): 366436224

約数和(自身を除く): 158413089

約数列:

[1, 3, 5, 15, 17, 41, 51, 85, 101, 123, 197, 205, 255, 303, 505, 591, 615, 697, 985, 1515, 1717, 2091, 2955, 3349, 3485, 4141, 5151, 8077, 8585, 10047, 10455, 12423, 16745, 19897, 20705, 24231, 25755, 40385, 50235, 59691, 62115, 70397, 99485, 121155, 137309, 211191, 298455, 338249, 351985, 411927, 686545, 815777, 1014747, 1055955, 1691245, 2059635, 2447331, 4078885, 5073735, 12236655, 13868209, 41604627, 69341045, 208023135]

約数ペア:

[(1, 208023135), (3, 69341045), (5, 41604627), (15, 13868209), (17, 12236655), (41, 5073735), (51, 4078885), (85, 2447331), (101, 2059635), (123, 1691245), (197, 1055955), (205, 1014747), (255, 815777), (303, 686545), (505, 411927), (591, 351985), (615, 338249), (697, 298455), (985, 211191), (1515, 137309), (1717, 121155), (2091, 99485), (2955, 70397), (3349, 62115), (3485, 59691), (4141, 50235), (5151, 40385), (8077, 25755), (8585, 24231), (10047, 20705), (10455, 19897), (12423, 16745)]