20423816

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:294

約数の個数: 64

約数和(自身を含む): 46414080

約数和(自身を除く): 25990264

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 101, 157, 161, 184, 202, 314, 322, 404, 628, 644, 707, 808, 1099, 1256, 1288, 1414, 2198, 2323, 2828, 3611, 4396, 4646, 5656, 7222, 8792, 9292, 14444, 15857, 16261, 18584, 25277, 28888, 31714, 32522, 50554, 63428, 65044, 101108, 110999, 126856, 130088, 202216, 221998, 364711, 443996, 729422, 887992, 1458844, 2552977, 2917688, 5105954, 10211908, 20423816]

約数ペア:

[(1, 20423816), (2, 10211908), (4, 5105954), (7, 2917688), (8, 2552977), (14, 1458844), (23, 887992), (28, 729422), (46, 443996), (56, 364711), (92, 221998), (101, 202216), (157, 130088), (161, 126856), (184, 110999), (202, 101108), (314, 65044), (322, 63428), (404, 50554), (628, 32522), (644, 31714), (707, 28888), (808, 25277), (1099, 18584), (1256, 16261), (1288, 15857), (1414, 14444), (2198, 9292), (2323, 8792), (2828, 7222), (3611, 5656), (4396, 4646)]