19994240

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4463}}^1$

素因数の和:4489

約数の個数: 64

約数和(自身を含む): 54639360

約数和(自身を除く): 34645120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4463, 4480, 8926, 17852, 22315, 31241, 35704, 44630, 62482, 71408, 89260, 124964, 142816, 156205, 178520, 249928, 285632, 312410, 357040, 499856, 571264, 624820, 714080, 999712, 1249640, 1428160, 1999424, 2499280, 2856320, 3998848, 4998560, 9997120, 19994240]

約数ペア:

[(1, 19994240), (2, 9997120), (4, 4998560), (5, 3998848), (7, 2856320), (8, 2499280), (10, 1999424), (14, 1428160), (16, 1249640), (20, 999712), (28, 714080), (32, 624820), (35, 571264), (40, 499856), (56, 357040), (64, 312410), (70, 285632), (80, 249928), (112, 178520), (128, 156205), (140, 142816), (160, 124964), (224, 89260), (280, 71408), (320, 62482), (448, 44630), (560, 35704), (640, 31241), (896, 22315), (1120, 17852), (2240, 8926), (4463, 4480)]