20843900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2707}}^1$

素因数の和:2739

約数の個数: 72

約数和(自身を含む): 56413056

約数和(自身を除く): 35569156

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 140, 154, 175, 220, 275, 308, 350, 385, 550, 700, 770, 1100, 1540, 1925, 2707, 3850, 5414, 7700, 10828, 13535, 18949, 27070, 29777, 37898, 54140, 59554, 67675, 75796, 94745, 119108, 135350, 148885, 189490, 208439, 270700, 297770, 378980, 416878, 473725, 595540, 744425, 833756, 947450, 1042195, 1488850, 1894900, 2084390, 2977700, 4168780, 5210975, 10421950, 20843900]

約数ペア:

[(1, 20843900), (2, 10421950), (4, 5210975), (5, 4168780), (7, 2977700), (10, 2084390), (11, 1894900), (14, 1488850), (20, 1042195), (22, 947450), (25, 833756), (28, 744425), (35, 595540), (44, 473725), (50, 416878), (55, 378980), (70, 297770), (77, 270700), (100, 208439), (110, 189490), (140, 148885), (154, 135350), (175, 119108), (220, 94745), (275, 75796), (308, 67675), (350, 59554), (385, 54140), (550, 37898), (700, 29777), (770, 27070), (1100, 18949), (1540, 13535), (1925, 10828), (2707, 7700), (3850, 5414)]