20532800

素因数分解:

$2^6\times 5^2\times {\mathrm{41}}^1\times {\mathrm{313}}^1$

素因数の和:376

約数の個数: 84

約数和(自身を含む): 51921156

約数和(自身を除く): 31388356

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 64, 80, 82, 100, 160, 164, 200, 205, 313, 320, 328, 400, 410, 626, 656, 800, 820, 1025, 1252, 1312, 1565, 1600, 1640, 2050, 2504, 2624, 3130, 3280, 4100, 5008, 6260, 6560, 7825, 8200, 10016, 12520, 12833, 13120, 15650, 16400, 20032, 25040, 25666, 31300, 32800, 50080, 51332, 62600, 64165, 65600, 100160, 102664, 125200, 128330, 205328, 250400, 256660, 320825, 410656, 500800, 513320, 641650, 821312, 1026640, 1283300, 2053280, 2566600, 4106560, 5133200, 10266400, 20532800]

約数ペア:

[(1, 20532800), (2, 10266400), (4, 5133200), (5, 4106560), (8, 2566600), (10, 2053280), (16, 1283300), (20, 1026640), (25, 821312), (32, 641650), (40, 513320), (41, 500800), (50, 410656), (64, 320825), (80, 256660), (82, 250400), (100, 205328), (160, 128330), (164, 125200), (200, 102664), (205, 100160), (313, 65600), (320, 64165), (328, 62600), (400, 51332), (410, 50080), (626, 32800), (656, 31300), (800, 25666), (820, 25040), (1025, 20032), (1252, 16400), (1312, 15650), (1565, 13120), (1600, 12833), (1640, 12520), (2050, 10016), (2504, 8200), (2624, 7825), (3130, 6560), (3280, 6260), (4100, 5008)]