2457680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1035

約数の個数: 40

約数和(自身を含む): 5904384

約数和(自身を除く): 3446704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 991, 1240, 1982, 2480, 3964, 4955, 7928, 9910, 15856, 19820, 30721, 39640, 61442, 79280, 122884, 153605, 245768, 307210, 491536, 614420, 1228840, 2457680]

約数ペア:

[(1, 2457680), (2, 1228840), (4, 614420), (5, 491536), (8, 307210), (10, 245768), (16, 153605), (20, 122884), (31, 79280), (40, 61442), (62, 39640), (80, 30721), (124, 19820), (155, 15856), (248, 9910), (310, 7928), (496, 4955), (620, 3964), (991, 2480), (1240, 1982)]