209632920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{249563}}^1$

素因数の和:249584

約数の個数: 64

約数和(自身を含む): 718744320

約数和(自身を除く): 509111400

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, 420, 840, 249563, 499126, 748689, 998252, 1247815, 1497378, 1746941, 1996504, 2495630, 2994756, 3493882, 3743445, 4991260, 5240823, 5989512, 6987764, 7486890, 8734705, 9982520, 10481646, 13975528, 14973780, 17469410, 20963292, 26204115, 29947560, 34938820, 41926584, 52408230, 69877640, 104816460, 209632920]

約数ペア:

[(1, 209632920), (2, 104816460), (3, 69877640), (4, 52408230), (5, 41926584), (6, 34938820), (7, 29947560), (8, 26204115), (10, 20963292), (12, 17469410), (14, 14973780), (15, 13975528), (20, 10481646), (21, 9982520), (24, 8734705), (28, 7486890), (30, 6987764), (35, 5989512), (40, 5240823), (42, 4991260), (56, 3743445), (60, 3493882), (70, 2994756), (84, 2495630), (105, 1996504), (120, 1746941), (140, 1497378), (168, 1247815), (210, 998252), (280, 748689), (420, 499126), (840, 249563)]