2881450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1$

素因数の和:80

約数の個数: 72

約数和(自身を含む): 6535296

約数和(自身を除く): 3653846

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 31, 50, 55, 62, 65, 110, 130, 143, 155, 169, 275, 286, 310, 325, 338, 341, 403, 550, 650, 682, 715, 775, 806, 845, 1430, 1550, 1690, 1705, 1859, 2015, 3410, 3575, 3718, 4030, 4225, 4433, 5239, 7150, 8450, 8525, 8866, 9295, 10075, 10478, 17050, 18590, 20150, 22165, 26195, 44330, 46475, 52390, 57629, 92950, 110825, 115258, 130975, 221650, 261950, 288145, 576290, 1440725, 2881450]

約数ペア:

[(1, 2881450), (2, 1440725), (5, 576290), (10, 288145), (11, 261950), (13, 221650), (22, 130975), (25, 115258), (26, 110825), (31, 92950), (50, 57629), (55, 52390), (62, 46475), (65, 44330), (110, 26195), (130, 22165), (143, 20150), (155, 18590), (169, 17050), (275, 10478), (286, 10075), (310, 9295), (325, 8866), (338, 8525), (341, 8450), (403, 7150), (550, 5239), (650, 4433), (682, 4225), (715, 4030), (775, 3718), (806, 3575), (845, 3410), (1430, 2015), (1550, 1859), (1690, 1705)]