1618258850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{17911}}^1$

素因数の和:18075

約数の個数: 48

約数和(自身を含む): 3264999360

約数和(自身を除く): 1646740510

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 139, 278, 325, 650, 695, 1390, 1807, 3475, 3614, 6950, 9035, 17911, 18070, 35822, 45175, 89555, 90350, 179110, 232843, 447775, 465686, 895550, 1164215, 2328430, 2489629, 4979258, 5821075, 11642150, 12448145, 24896290, 32365177, 62240725, 64730354, 124481450, 161825885, 323651770, 809129425, 1618258850]

約数ペア:

[(1, 1618258850), (2, 809129425), (5, 323651770), (10, 161825885), (13, 124481450), (25, 64730354), (26, 62240725), (50, 32365177), (65, 24896290), (130, 12448145), (139, 11642150), (278, 5821075), (325, 4979258), (650, 2489629), (695, 2328430), (1390, 1164215), (1807, 895550), (3475, 465686), (3614, 447775), (6950, 232843), (9035, 179110), (17911, 90350), (18070, 89555), (35822, 45175)]