19042138895

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{67987}}^1$

素因数の和:68175

約数の個数: 32

約数和(自身を含む): 25585244160

約数和(自身を除く): 6543105265

約数列:

[1, 5, 13, 31, 65, 139, 155, 403, 695, 1807, 2015, 4309, 9035, 21545, 56017, 67987, 280085, 339935, 883831, 2107597, 4419155, 9450193, 10537985, 27398761, 47250965, 122852509, 136993805, 292955983, 614262545, 1464779915, 3808427779, 19042138895]

約数ペア:

[(1, 19042138895), (5, 3808427779), (13, 1464779915), (31, 614262545), (65, 292955983), (139, 136993805), (155, 122852509), (403, 47250965), (695, 27398761), (1807, 10537985), (2015, 9450193), (4309, 4419155), (9035, 2107597), (21545, 883831), (56017, 339935), (67987, 280085)]