1389710280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{4253}}^1$

素因数の和:4663

約数の個数: 128

約数和(自身を含む): 4778092800

約数和(自身を除く): 3388382520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 389, 420, 778, 840, 1167, 1556, 1945, 2334, 2723, 3112, 3890, 4253, 4668, 5446, 5835, 7780, 8169, 8506, 9336, 10892, 11670, 12759, 13615, 15560, 16338, 17012, 21265, 21784, 23340, 25518, 27230, 29771, 32676, 34024, 40845, 42530, 46680, 51036, 54460, 59542, 63795, 65352, 81690, 85060, 89313, 102072, 108920, 119084, 127590, 148855, 163380, 170120, 178626, 238168, 255180, 297710, 326760, 357252, 446565, 510360, 595420, 714504, 893130, 1190840, 1654417, 1786260, 3308834, 3572520, 4963251, 6617668, 8272085, 9926502, 11580919, 13235336, 16544170, 19853004, 23161838, 24816255, 33088340, 34742757, 39706008, 46323676, 49632510, 57904595, 66176680, 69485514, 92647352, 99265020, 115809190, 138971028, 173713785, 198530040, 231618380, 277942056, 347427570, 463236760, 694855140, 1389710280]

約数ペア:

[(1, 1389710280), (2, 694855140), (3, 463236760), (4, 347427570), (5, 277942056), (6, 231618380), (7, 198530040), (8, 173713785), (10, 138971028), (12, 115809190), (14, 99265020), (15, 92647352), (20, 69485514), (21, 66176680), (24, 57904595), (28, 49632510), (30, 46323676), (35, 39706008), (40, 34742757), (42, 33088340), (56, 24816255), (60, 23161838), (70, 19853004), (84, 16544170), (105, 13235336), (120, 11580919), (140, 9926502), (168, 8272085), (210, 6617668), (280, 4963251), (389, 3572520), (420, 3308834), (778, 1786260), (840, 1654417), (1167, 1190840), (1556, 893130), (1945, 714504), (2334, 595420), (2723, 510360), (3112, 446565), (3890, 357252), (4253, 326760), (4668, 297710), (5446, 255180), (5835, 238168), (7780, 178626), (8169, 170120), (8506, 163380), (9336, 148855), (10892, 127590), (11670, 119084), (12759, 108920), (13615, 102072), (15560, 89313), (16338, 85060), (17012, 81690), (21265, 65352), (21784, 63795), (23340, 59542), (25518, 54460), (27230, 51036), (29771, 46680), (32676, 42530), (34024, 40845)]