209998728240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{124999243}}^1$

素因数の和:124999266

約数の個数: 80

約数和(自身を含む): 743995500288

約数和(自身を除く): 533996772048

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 124999243, 249998486, 374997729, 499996972, 624996215, 749995458, 874994701, 999993944, 1249992430, 1499990916, 1749989402, 1874988645, 1999987888, 2499984860, 2624984103, 2999981832, 3499978804, 3749977290, 4374973505, 4999969720, 5249968206, 5999963664, 6999957608, 7499954580, 8749947010, 9999939440, 10499936412, 13124920515, 13999915216, 14999909160, 17499894020, 20999872824, 26249841030, 29999818320, 34999788040, 41999745648, 52499682060, 69999576080, 104999364120, 209998728240]

約数ペア:

[(1, 209998728240), (2, 104999364120), (3, 69999576080), (4, 52499682060), (5, 41999745648), (6, 34999788040), (7, 29999818320), (8, 26249841030), (10, 20999872824), (12, 17499894020), (14, 14999909160), (15, 13999915216), (16, 13124920515), (20, 10499936412), (21, 9999939440), (24, 8749947010), (28, 7499954580), (30, 6999957608), (35, 5999963664), (40, 5249968206), (42, 4999969720), (48, 4374973505), (56, 3749977290), (60, 3499978804), (70, 2999981832), (80, 2624984103), (84, 2499984860), (105, 1999987888), (112, 1874988645), (120, 1749989402), (140, 1499990916), (168, 1249992430), (210, 999993944), (240, 874994701), (280, 749995458), (336, 624996215), (420, 499996972), (560, 374997729), (840, 249998486), (1680, 124999243)]