20425020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4421}}^1$

素因数の和:4451

約数の個数: 96

約数和(自身を含む): 71318016

約数和(自身を除く): 50892996

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 132, 140, 154, 165, 210, 220, 231, 308, 330, 385, 420, 462, 660, 770, 924, 1155, 1540, 2310, 4421, 4620, 8842, 13263, 17684, 22105, 26526, 30947, 44210, 48631, 53052, 61894, 66315, 88420, 92841, 97262, 123788, 132630, 145893, 154735, 185682, 194524, 243155, 265260, 291786, 309470, 340417, 371364, 464205, 486310, 583572, 618940, 680834, 729465, 928410, 972620, 1021251, 1361668, 1458930, 1702085, 1856820, 2042502, 2917860, 3404170, 4085004, 5106255, 6808340, 10212510, 20425020]

約数ペア:

[(1, 20425020), (2, 10212510), (3, 6808340), (4, 5106255), (5, 4085004), (6, 3404170), (7, 2917860), (10, 2042502), (11, 1856820), (12, 1702085), (14, 1458930), (15, 1361668), (20, 1021251), (21, 972620), (22, 928410), (28, 729465), (30, 680834), (33, 618940), (35, 583572), (42, 486310), (44, 464205), (55, 371364), (60, 340417), (66, 309470), (70, 291786), (77, 265260), (84, 243155), (105, 194524), (110, 185682), (132, 154735), (140, 145893), (154, 132630), (165, 123788), (210, 97262), (220, 92841), (231, 88420), (308, 66315), (330, 61894), (385, 53052), (420, 48631), (462, 44210), (660, 30947), (770, 26526), (924, 22105), (1155, 17684), (1540, 13263), (2310, 8842), (4421, 4620)]