20446440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{241}}^1$

素因数の和:363

約数の個数: 128

約数和(自身を含む): 71089920

約数和(自身を除く): 50643480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 101, 105, 120, 140, 168, 202, 210, 241, 280, 303, 404, 420, 482, 505, 606, 707, 723, 808, 840, 964, 1010, 1205, 1212, 1414, 1446, 1515, 1687, 1928, 2020, 2121, 2410, 2424, 2828, 2892, 3030, 3374, 3535, 3615, 4040, 4242, 4820, 5061, 5656, 5784, 6060, 6748, 7070, 7230, 8435, 8484, 9640, 10122, 10605, 12120, 13496, 14140, 14460, 16870, 16968, 20244, 21210, 24341, 25305, 28280, 28920, 33740, 40488, 42420, 48682, 50610, 67480, 73023, 84840, 97364, 101220, 121705, 146046, 170387, 194728, 202440, 243410, 292092, 340774, 365115, 486820, 511161, 584184, 681548, 730230, 851935, 973640, 1022322, 1363096, 1460460, 1703870, 2044644, 2555805, 2920920, 3407740, 4089288, 5111610, 6815480, 10223220, 20446440]

約数ペア:

[(1, 20446440), (2, 10223220), (3, 6815480), (4, 5111610), (5, 4089288), (6, 3407740), (7, 2920920), (8, 2555805), (10, 2044644), (12, 1703870), (14, 1460460), (15, 1363096), (20, 1022322), (21, 973640), (24, 851935), (28, 730230), (30, 681548), (35, 584184), (40, 511161), (42, 486820), (56, 365115), (60, 340774), (70, 292092), (84, 243410), (101, 202440), (105, 194728), (120, 170387), (140, 146046), (168, 121705), (202, 101220), (210, 97364), (241, 84840), (280, 73023), (303, 67480), (404, 50610), (420, 48682), (482, 42420), (505, 40488), (606, 33740), (707, 28920), (723, 28280), (808, 25305), (840, 24341), (964, 21210), (1010, 20244), (1205, 16968), (1212, 16870), (1414, 14460), (1446, 14140), (1515, 13496), (1687, 12120), (1928, 10605), (2020, 10122), (2121, 9640), (2410, 8484), (2424, 8435), (2828, 7230), (2892, 7070), (3030, 6748), (3374, 6060), (3535, 5784), (3615, 5656), (4040, 5061), (4242, 4820)]