39899020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{12391}}^1$

素因数の和:12430

約数の個数: 48

約数和(自身を含む): 99929088

約数和(自身を除く): 60030068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 12391, 24782, 49564, 61955, 86737, 123910, 173474, 247820, 284993, 346948, 433685, 569986, 867370, 1139972, 1424965, 1734740, 1994951, 2849930, 3989902, 5699860, 7979804, 9974755, 19949510, 39899020]

約数ペア:

[(1, 39899020), (2, 19949510), (4, 9974755), (5, 7979804), (7, 5699860), (10, 3989902), (14, 2849930), (20, 1994951), (23, 1734740), (28, 1424965), (35, 1139972), (46, 867370), (70, 569986), (92, 433685), (115, 346948), (140, 284993), (161, 247820), (230, 173474), (322, 123910), (460, 86737), (644, 61955), (805, 49564), (1610, 24782), (3220, 12391)]