74142460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{7459}}^1$

素因数の和:7546

約数の個数: 48

約数和(自身を含む): 180472320

約数和(自身を除く): 106329860

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, 7459, 9940, 14918, 29836, 37295, 52213, 74590, 104426, 149180, 208852, 261065, 522130, 529589, 1044260, 1059178, 2118356, 2647945, 3707123, 5295890, 7414246, 10591780, 14828492, 18535615, 37071230, 74142460]

約数ペア:

[(1, 74142460), (2, 37071230), (4, 18535615), (5, 14828492), (7, 10591780), (10, 7414246), (14, 5295890), (20, 3707123), (28, 2647945), (35, 2118356), (70, 1059178), (71, 1044260), (140, 529589), (142, 522130), (284, 261065), (355, 208852), (497, 149180), (710, 104426), (994, 74590), (1420, 52213), (1988, 37295), (2485, 29836), (4970, 14918), (7459, 9940)]