28745920

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{313}}^1$

素因数の和:378

約数の個数: 112

約数和(自身を含む): 80394048

約数和(自身を除く): 51648128

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 56, 64, 70, 80, 82, 112, 140, 160, 164, 205, 224, 280, 287, 313, 320, 328, 410, 448, 560, 574, 626, 656, 820, 1120, 1148, 1252, 1312, 1435, 1565, 1640, 2191, 2240, 2296, 2504, 2624, 2870, 3130, 3280, 4382, 4592, 5008, 5740, 6260, 6560, 8764, 9184, 10016, 10955, 11480, 12520, 12833, 13120, 17528, 18368, 20032, 21910, 22960, 25040, 25666, 35056, 43820, 45920, 50080, 51332, 64165, 70112, 87640, 89831, 91840, 100160, 102664, 128330, 140224, 175280, 179662, 205328, 256660, 350560, 359324, 410656, 449155, 513320, 701120, 718648, 821312, 898310, 1026640, 1437296, 1796620, 2053280, 2874592, 3593240, 4106560, 5749184, 7186480, 14372960, 28745920]

約数ペア:

[(1, 28745920), (2, 14372960), (4, 7186480), (5, 5749184), (7, 4106560), (8, 3593240), (10, 2874592), (14, 2053280), (16, 1796620), (20, 1437296), (28, 1026640), (32, 898310), (35, 821312), (40, 718648), (41, 701120), (56, 513320), (64, 449155), (70, 410656), (80, 359324), (82, 350560), (112, 256660), (140, 205328), (160, 179662), (164, 175280), (205, 140224), (224, 128330), (280, 102664), (287, 100160), (313, 91840), (320, 89831), (328, 87640), (410, 70112), (448, 64165), (560, 51332), (574, 50080), (626, 45920), (656, 43820), (820, 35056), (1120, 25666), (1148, 25040), (1252, 22960), (1312, 21910), (1435, 20032), (1565, 18368), (1640, 17528), (2191, 13120), (2240, 12833), (2296, 12520), (2504, 11480), (2624, 10955), (2870, 10016), (3130, 9184), (3280, 8764), (4382, 6560), (4592, 6260), (5008, 5740)]