20486620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{251}}^1$

素因数の和:331

約数の個数: 96

約数和(自身を含む): 54867456

約数和(自身を除く): 34380836

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 53, 55, 70, 77, 106, 110, 140, 154, 212, 220, 251, 265, 308, 371, 385, 502, 530, 583, 742, 770, 1004, 1060, 1166, 1255, 1484, 1540, 1757, 1855, 2332, 2510, 2761, 2915, 3514, 3710, 4081, 5020, 5522, 5830, 7028, 7420, 8162, 8785, 11044, 11660, 13303, 13805, 16324, 17570, 19327, 20405, 26606, 27610, 35140, 38654, 40810, 53212, 55220, 66515, 77308, 81620, 93121, 96635, 133030, 146333, 186242, 193270, 266060, 292666, 372484, 386540, 465605, 585332, 731665, 931210, 1024331, 1463330, 1862420, 2048662, 2926660, 4097324, 5121655, 10243310, 20486620]

約数ペア:

[(1, 20486620), (2, 10243310), (4, 5121655), (5, 4097324), (7, 2926660), (10, 2048662), (11, 1862420), (14, 1463330), (20, 1024331), (22, 931210), (28, 731665), (35, 585332), (44, 465605), (53, 386540), (55, 372484), (70, 292666), (77, 266060), (106, 193270), (110, 186242), (140, 146333), (154, 133030), (212, 96635), (220, 93121), (251, 81620), (265, 77308), (308, 66515), (371, 55220), (385, 53212), (502, 40810), (530, 38654), (583, 35140), (742, 27610), (770, 26606), (1004, 20405), (1060, 19327), (1166, 17570), (1255, 16324), (1484, 13805), (1540, 13303), (1757, 11660), (1855, 11044), (2332, 8785), (2510, 8162), (2761, 7420), (2915, 7028), (3514, 5830), (3710, 5522), (4081, 5020)]