39988480

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{4463}}^1$

素因数の和:4491

約数の個数: 72

約数和(自身を含む): 109492992

約数和(自身を除く): 69504512

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, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4463, 4480, 8926, 8960, 17852, 22315, 31241, 35704, 44630, 62482, 71408, 89260, 124964, 142816, 156205, 178520, 249928, 285632, 312410, 357040, 499856, 571264, 624820, 714080, 999712, 1142528, 1249640, 1428160, 1999424, 2499280, 2856320, 3998848, 4998560, 5712640, 7997696, 9997120, 19994240, 39988480]

約数ペア:

[(1, 39988480), (2, 19994240), (4, 9997120), (5, 7997696), (7, 5712640), (8, 4998560), (10, 3998848), (14, 2856320), (16, 2499280), (20, 1999424), (28, 1428160), (32, 1249640), (35, 1142528), (40, 999712), (56, 714080), (64, 624820), (70, 571264), (80, 499856), (112, 357040), (128, 312410), (140, 285632), (160, 249928), (224, 178520), (256, 156205), (280, 142816), (320, 124964), (448, 89260), (560, 71408), (640, 62482), (896, 44630), (1120, 35704), (1280, 31241), (1792, 22315), (2240, 17852), (4463, 8960), (4480, 8926)]