31386880

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:172

約数の個数: 144

約数和(自身を含む): 89478144

約数和(自身を除く): 58091264

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 113, 124, 128, 140, 155, 160, 217, 224, 226, 248, 256, 280, 310, 320, 434, 448, 452, 496, 560, 565, 620, 640, 791, 868, 896, 904, 992, 1085, 1120, 1130, 1240, 1280, 1582, 1736, 1792, 1808, 1984, 2170, 2240, 2260, 2480, 3164, 3472, 3503, 3616, 3955, 3968, 4340, 4480, 4520, 4960, 6328, 6944, 7006, 7232, 7910, 7936, 8680, 8960, 9040, 9920, 12656, 13888, 14012, 14464, 15820, 17360, 17515, 18080, 19840, 24521, 25312, 27776, 28024, 28928, 31640, 34720, 35030, 36160, 39680, 49042, 50624, 55552, 56048, 63280, 69440, 70060, 72320, 98084, 101248, 112096, 122605, 126560, 138880, 140120, 144640, 196168, 202496, 224192, 245210, 253120, 277760, 280240, 392336, 448384, 490420, 506240, 560480, 784672, 896768, 980840, 1012480, 1120960, 1569344, 1961680, 2241920, 3138688, 3923360, 4483840, 6277376, 7846720, 15693440, 31386880]

約数ペア:

[(1, 31386880), (2, 15693440), (4, 7846720), (5, 6277376), (7, 4483840), (8, 3923360), (10, 3138688), (14, 2241920), (16, 1961680), (20, 1569344), (28, 1120960), (31, 1012480), (32, 980840), (35, 896768), (40, 784672), (56, 560480), (62, 506240), (64, 490420), (70, 448384), (80, 392336), (112, 280240), (113, 277760), (124, 253120), (128, 245210), (140, 224192), (155, 202496), (160, 196168), (217, 144640), (224, 140120), (226, 138880), (248, 126560), (256, 122605), (280, 112096), (310, 101248), (320, 98084), (434, 72320), (448, 70060), (452, 69440), (496, 63280), (560, 56048), (565, 55552), (620, 50624), (640, 49042), (791, 39680), (868, 36160), (896, 35030), (904, 34720), (992, 31640), (1085, 28928), (1120, 28024), (1130, 27776), (1240, 25312), (1280, 24521), (1582, 19840), (1736, 18080), (1792, 17515), (1808, 17360), (1984, 15820), (2170, 14464), (2240, 14012), (2260, 13888), (2480, 12656), (3164, 9920), (3472, 9040), (3503, 8960), (3616, 8680), (3955, 7936), (3968, 7910), (4340, 7232), (4480, 7006), (4520, 6944), (4960, 6328)]