13002020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{313}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 28697088

約数和(自身を除く): 15695068

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 67, 124, 134, 155, 268, 310, 313, 335, 620, 626, 670, 1252, 1340, 1565, 2077, 3130, 4154, 6260, 8308, 9703, 10385, 19406, 20770, 20971, 38812, 41540, 41942, 48515, 83884, 97030, 104855, 194060, 209710, 419420, 650101, 1300202, 2600404, 3250505, 6501010, 13002020]

約数ペア:

[(1, 13002020), (2, 6501010), (4, 3250505), (5, 2600404), (10, 1300202), (20, 650101), (31, 419420), (62, 209710), (67, 194060), (124, 104855), (134, 97030), (155, 83884), (268, 48515), (310, 41942), (313, 41540), (335, 38812), (620, 20971), (626, 20770), (670, 19406), (1252, 10385), (1340, 9703), (1565, 8308), (2077, 6260), (3130, 4154)]