4538380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{421}}^1$

素因数の和:455

約数の個数: 72

約数和(自身を含む): 12123216

約数和(自身を除く): 7584836

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 421, 490, 539, 770, 842, 980, 1078, 1540, 1684, 2105, 2156, 2695, 2947, 4210, 4631, 5390, 5894, 8420, 9262, 10780, 11788, 14735, 18524, 20629, 23155, 29470, 32417, 41258, 46310, 58940, 64834, 82516, 92620, 103145, 129668, 162085, 206290, 226919, 324170, 412580, 453838, 648340, 907676, 1134595, 2269190, 4538380]

約数ペア:

[(1, 4538380), (2, 2269190), (4, 1134595), (5, 907676), (7, 648340), (10, 453838), (11, 412580), (14, 324170), (20, 226919), (22, 206290), (28, 162085), (35, 129668), (44, 103145), (49, 92620), (55, 82516), (70, 64834), (77, 58940), (98, 46310), (110, 41258), (140, 32417), (154, 29470), (196, 23155), (220, 20629), (245, 18524), (308, 14735), (385, 11788), (421, 10780), (490, 9262), (539, 8420), (770, 5894), (842, 5390), (980, 4631), (1078, 4210), (1540, 2947), (1684, 2695), (2105, 2156)]