212557380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{1301}}^1$

素因数の和:1709

約数の個数: 96

約数和(自身を含む): 682456320

約数和(自身を除く): 469898940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 389, 420, 778, 1167, 1301, 1556, 1945, 2334, 2602, 2723, 3890, 3903, 4668, 5204, 5446, 5835, 6505, 7780, 7806, 8169, 9107, 10892, 11670, 13010, 13615, 15612, 16338, 18214, 19515, 23340, 26020, 27230, 27321, 32676, 36428, 39030, 40845, 45535, 54460, 54642, 78060, 81690, 91070, 109284, 136605, 163380, 182140, 273210, 506089, 546420, 1012178, 1518267, 2024356, 2530445, 3036534, 3542623, 5060890, 6073068, 7085246, 7591335, 10121780, 10627869, 14170492, 15182670, 17713115, 21255738, 30365340, 35426230, 42511476, 53139345, 70852460, 106278690, 212557380]

約数ペア:

[(1, 212557380), (2, 106278690), (3, 70852460), (4, 53139345), (5, 42511476), (6, 35426230), (7, 30365340), (10, 21255738), (12, 17713115), (14, 15182670), (15, 14170492), (20, 10627869), (21, 10121780), (28, 7591335), (30, 7085246), (35, 6073068), (42, 5060890), (60, 3542623), (70, 3036534), (84, 2530445), (105, 2024356), (140, 1518267), (210, 1012178), (389, 546420), (420, 506089), (778, 273210), (1167, 182140), (1301, 163380), (1556, 136605), (1945, 109284), (2334, 91070), (2602, 81690), (2723, 78060), (3890, 54642), (3903, 54460), (4668, 45535), (5204, 40845), (5446, 39030), (5835, 36428), (6505, 32676), (7780, 27321), (7806, 27230), (8169, 26020), (9107, 23340), (10892, 19515), (11670, 18214), (13010, 16338), (13615, 15612)]