20570360

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{313}}^1$

素因数の和:408

約数の個数: 64

約数和(自身を含む): 48833280

約数和(自身を除く): 28262920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 53, 62, 106, 124, 155, 212, 248, 265, 310, 313, 424, 530, 620, 626, 1060, 1240, 1252, 1565, 1643, 2120, 2504, 3130, 3286, 6260, 6572, 8215, 9703, 12520, 13144, 16430, 16589, 19406, 32860, 33178, 38812, 48515, 65720, 66356, 77624, 82945, 97030, 132712, 165890, 194060, 331780, 388120, 514259, 663560, 1028518, 2057036, 2571295, 4114072, 5142590, 10285180, 20570360]

約数ペア:

[(1, 20570360), (2, 10285180), (4, 5142590), (5, 4114072), (8, 2571295), (10, 2057036), (20, 1028518), (31, 663560), (40, 514259), (53, 388120), (62, 331780), (106, 194060), (124, 165890), (155, 132712), (212, 97030), (248, 82945), (265, 77624), (310, 66356), (313, 65720), (424, 48515), (530, 38812), (620, 33178), (626, 32860), (1060, 19406), (1240, 16589), (1252, 16430), (1565, 13144), (1643, 12520), (2120, 9703), (2504, 8215), (3130, 6572), (3286, 6260)]