20558328

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1549}}^1$

素因数の和:1644

約数の個数: 64

約数和(自身を含む): 59520000

約数和(自身を除く): 38961672

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 79, 84, 158, 168, 237, 316, 474, 553, 632, 948, 1106, 1549, 1659, 1896, 2212, 3098, 3318, 4424, 4647, 6196, 6636, 9294, 10843, 12392, 13272, 18588, 21686, 32529, 37176, 43372, 65058, 86744, 122371, 130116, 244742, 260232, 367113, 489484, 734226, 856597, 978968, 1468452, 1713194, 2569791, 2936904, 3426388, 5139582, 6852776, 10279164, 20558328]

約数ペア:

[(1, 20558328), (2, 10279164), (3, 6852776), (4, 5139582), (6, 3426388), (7, 2936904), (8, 2569791), (12, 1713194), (14, 1468452), (21, 978968), (24, 856597), (28, 734226), (42, 489484), (56, 367113), (79, 260232), (84, 244742), (158, 130116), (168, 122371), (237, 86744), (316, 65058), (474, 43372), (553, 37176), (632, 32529), (948, 21686), (1106, 18588), (1549, 13272), (1659, 12392), (1896, 10843), (2212, 9294), (3098, 6636), (3318, 6196), (4424, 4647)]