205195820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{17419}}^1$

素因数の和:17478

約数の個数: 48

約数和(自身を含む): 468249600

約数和(自身を除く): 263053780

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 2356, 2945, 5890, 11780, 17419, 34838, 69676, 87095, 174190, 330961, 348380, 539989, 661922, 1079978, 1323844, 1654805, 2159956, 2699945, 3309610, 5399890, 6619220, 10259791, 10799780, 20519582, 41039164, 51298955, 102597910, 205195820]

約数ペア:

[(1, 205195820), (2, 102597910), (4, 51298955), (5, 41039164), (10, 20519582), (19, 10799780), (20, 10259791), (31, 6619220), (38, 5399890), (62, 3309610), (76, 2699945), (95, 2159956), (124, 1654805), (155, 1323844), (190, 1079978), (310, 661922), (380, 539989), (589, 348380), (620, 330961), (1178, 174190), (2356, 87095), (2945, 69676), (5890, 34838), (11780, 17419)]