20178648

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{40037}}^1$

素因数の和:40056

約数の個数: 48

約数和(自身を含む): 62459280

約数和(自身を除く): 42280632

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 40037, 80074, 120111, 160148, 240222, 280259, 320296, 360333, 480444, 560518, 720666, 840777, 960888, 1121036, 1441332, 1681554, 2242072, 2522331, 2882664, 3363108, 5044662, 6726216, 10089324, 20178648]

約数ペア:

[(1, 20178648), (2, 10089324), (3, 6726216), (4, 5044662), (6, 3363108), (7, 2882664), (8, 2522331), (9, 2242072), (12, 1681554), (14, 1441332), (18, 1121036), (21, 960888), (24, 840777), (28, 720666), (36, 560518), (42, 480444), (56, 360333), (63, 320296), (72, 280259), (84, 240222), (126, 160148), (168, 120111), (252, 80074), (504, 40037)]