20155321828

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{727}}^1\times {\mathrm{1607}}^1$

素因数の和:2584

約数の個数: 48

約数和(自身を含む): 37366318080

約数和(自身を除く): 17210996252

約数列:

[1, 2, 4, 19, 38, 76, 227, 454, 727, 908, 1454, 1607, 2908, 3214, 4313, 6428, 8626, 13813, 17252, 27626, 30533, 55252, 61066, 122132, 165029, 330058, 364789, 660116, 729578, 1168289, 1459156, 2336578, 3135551, 4673156, 6271102, 6930991, 12542204, 13861982, 22197491, 27723964, 44394982, 88789964, 265201603, 530403206, 1060806412, 5038830457, 10077660914, 20155321828]

約数ペア:

[(1, 20155321828), (2, 10077660914), (4, 5038830457), (19, 1060806412), (38, 530403206), (76, 265201603), (227, 88789964), (454, 44394982), (727, 27723964), (908, 22197491), (1454, 13861982), (1607, 12542204), (2908, 6930991), (3214, 6271102), (4313, 4673156), (6428, 3135551), (8626, 2336578), (13813, 1459156), (17252, 1168289), (27626, 729578), (30533, 660116), (55252, 364789), (61066, 330058), (122132, 165029)]