201782720

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20341}}^1$

素因数の和:20389

約数の個数: 56

約数和(自身を含む): 496019328

約数和(自身を除く): 294236608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 20341, 40682, 81364, 101705, 162728, 203410, 325456, 406820, 630571, 650912, 813640, 1261142, 1301824, 1627280, 2522284, 3152855, 3254560, 5044568, 6305710, 6509120, 10089136, 12611420, 20178272, 25222840, 40356544, 50445680, 100891360, 201782720]

約数ペア:

[(1, 201782720), (2, 100891360), (4, 50445680), (5, 40356544), (8, 25222840), (10, 20178272), (16, 12611420), (20, 10089136), (31, 6509120), (32, 6305710), (40, 5044568), (62, 3254560), (64, 3152855), (80, 2522284), (124, 1627280), (155, 1301824), (160, 1261142), (248, 813640), (310, 650912), (320, 630571), (496, 406820), (620, 325456), (992, 203410), (1240, 162728), (1984, 101705), (2480, 81364), (4960, 40682), (9920, 20341)]