291212320

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{260011}}^1$

素因数の和:260033

約数の個数: 48

約数和(自身を含む): 786276288

約数和(自身を除く): 495063968

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 260011, 520022, 1040044, 1300055, 1820077, 2080088, 2600110, 3640154, 4160176, 5200220, 7280308, 8320352, 9100385, 10400440, 14560616, 18200770, 20800880, 29121232, 36401540, 41601760, 58242464, 72803080, 145606160, 291212320]

約数ペア:

[(1, 291212320), (2, 145606160), (4, 72803080), (5, 58242464), (7, 41601760), (8, 36401540), (10, 29121232), (14, 20800880), (16, 18200770), (20, 14560616), (28, 10400440), (32, 9100385), (35, 8320352), (40, 7280308), (56, 5200220), (70, 4160176), (80, 3640154), (112, 2600110), (140, 2080088), (160, 1820077), (224, 1300055), (280, 1040044), (560, 520022), (1120, 260011)]