1978394055

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{1741}}^1$

素因数の和:1928

約数の個数: 64

約数和(自身を含む): 3539966976

約数和(自身を除く): 1561572921

約数列:

[1, 3, 5, 11, 15, 33, 55, 71, 97, 165, 213, 291, 355, 485, 781, 1065, 1067, 1455, 1741, 2343, 3201, 3905, 5223, 5335, 6887, 8705, 11715, 16005, 19151, 20661, 26115, 34435, 57453, 75757, 95755, 103305, 123611, 168877, 227271, 287265, 370833, 378785, 506631, 618055, 844385, 1136355, 1359721, 1854165, 1857647, 2533155, 4079163, 5572941, 6798605, 9288235, 11990267, 20395815, 27864705, 35970801, 59951335, 131892937, 179854005, 395678811, 659464685, 1978394055]

約数ペア:

[(1, 1978394055), (3, 659464685), (5, 395678811), (11, 179854005), (15, 131892937), (33, 59951335), (55, 35970801), (71, 27864705), (97, 20395815), (165, 11990267), (213, 9288235), (291, 6798605), (355, 5572941), (485, 4079163), (781, 2533155), (1065, 1857647), (1067, 1854165), (1455, 1359721), (1741, 1136355), (2343, 844385), (3201, 618055), (3905, 506631), (5223, 378785), (5335, 370833), (6887, 287265), (8705, 227271), (11715, 168877), (16005, 123611), (19151, 103305), (20661, 95755), (26115, 75757), (34435, 57453)]