18865280

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4211}}^1$

素因数の和:4237

約数の個数: 64

約数和(自身を含む): 51554880

約数和(自身を除く): 32689600

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, 4211, 4480, 8422, 16844, 21055, 29477, 33688, 42110, 58954, 67376, 84220, 117908, 134752, 147385, 168440, 235816, 269504, 294770, 336880, 471632, 539008, 589540, 673760, 943264, 1179080, 1347520, 1886528, 2358160, 2695040, 3773056, 4716320, 9432640, 18865280]

約数ペア:

[(1, 18865280), (2, 9432640), (4, 4716320), (5, 3773056), (7, 2695040), (8, 2358160), (10, 1886528), (14, 1347520), (16, 1179080), (20, 943264), (28, 673760), (32, 589540), (35, 539008), (40, 471632), (56, 336880), (64, 294770), (70, 269504), (80, 235816), (112, 168440), (128, 147385), (140, 134752), (160, 117908), (224, 84220), (280, 67376), (320, 58954), (448, 42110), (560, 33688), (640, 29477), (896, 21055), (1120, 16844), (2240, 8422), (4211, 4480)]