53984140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5431}}^1$

素因数の和:5518

約数の個数: 48

約数和(自身を含む): 131410944

約数和(自身を除く): 77426804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 5431, 9940, 10862, 21724, 27155, 38017, 54310, 76034, 108620, 152068, 190085, 380170, 385601, 760340, 771202, 1542404, 1928005, 2699207, 3856010, 5398414, 7712020, 10796828, 13496035, 26992070, 53984140]

約数ペア:

[(1, 53984140), (2, 26992070), (4, 13496035), (5, 10796828), (7, 7712020), (10, 5398414), (14, 3856010), (20, 2699207), (28, 1928005), (35, 1542404), (70, 771202), (71, 760340), (140, 385601), (142, 380170), (284, 190085), (355, 152068), (497, 108620), (710, 76034), (994, 54310), (1420, 38017), (1988, 27155), (2485, 21724), (4970, 10862), (5431, 9940)]