508700120

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{313}}^1\times {\mathrm{991}}^1$

素因数の和:1356

約数の個数: 64

約数和(自身を含む): 1177424640

約数和(自身を除く): 668724520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 313, 328, 410, 626, 820, 991, 1252, 1565, 1640, 1982, 2504, 3130, 3964, 4955, 6260, 7928, 9910, 12520, 12833, 19820, 25666, 39640, 40631, 51332, 64165, 81262, 102664, 128330, 162524, 203155, 256660, 310183, 325048, 406310, 513320, 620366, 812620, 1240732, 1550915, 1625240, 2481464, 3101830, 6203660, 12407320, 12717503, 25435006, 50870012, 63587515, 101740024, 127175030, 254350060, 508700120]

約数ペア:

[(1, 508700120), (2, 254350060), (4, 127175030), (5, 101740024), (8, 63587515), (10, 50870012), (20, 25435006), (40, 12717503), (41, 12407320), (82, 6203660), (164, 3101830), (205, 2481464), (313, 1625240), (328, 1550915), (410, 1240732), (626, 812620), (820, 620366), (991, 513320), (1252, 406310), (1565, 325048), (1640, 310183), (1982, 256660), (2504, 203155), (3130, 162524), (3964, 128330), (4955, 102664), (6260, 81262), (7928, 64165), (9910, 51332), (12520, 40631), (12833, 39640), (19820, 25666)]