20176220536

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{809}}^1\times {\mathrm{3491}}^1$

素因数の和:4372

約数の個数: 64

約数和(自身を含む): 40730688000

約数和(自身を除く): 20554467464

約数列:

[1, 2, 4, 8, 19, 38, 47, 76, 94, 152, 188, 376, 809, 893, 1618, 1786, 3236, 3491, 3572, 6472, 6982, 7144, 13964, 15371, 27928, 30742, 38023, 61484, 66329, 76046, 122968, 132658, 152092, 164077, 265316, 304184, 328154, 530632, 656308, 722437, 1312616, 1444874, 2824219, 2889748, 3117463, 5648438, 5779496, 6234926, 11296876, 12469852, 22593752, 24939704, 53660161, 107320322, 132738293, 214640644, 265476586, 429281288, 530953172, 1061906344, 2522027567, 5044055134, 10088110268, 20176220536]

約数ペア:

[(1, 20176220536), (2, 10088110268), (4, 5044055134), (8, 2522027567), (19, 1061906344), (38, 530953172), (47, 429281288), (76, 265476586), (94, 214640644), (152, 132738293), (188, 107320322), (376, 53660161), (809, 24939704), (893, 22593752), (1618, 12469852), (1786, 11296876), (3236, 6234926), (3491, 5779496), (3572, 5648438), (6472, 3117463), (6982, 2889748), (7144, 2824219), (13964, 1444874), (15371, 1312616), (27928, 722437), (30742, 656308), (38023, 530632), (61484, 328154), (66329, 304184), (76046, 265316), (122968, 164077), (132658, 152092)]