3983980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1$

素因数の和:239

約数の個数: 96

約数和(自身を含む): 11289600

約数和(自身を除く): 7305620

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 110, 130, 140, 143, 154, 182, 199, 220, 260, 286, 308, 364, 385, 398, 455, 572, 715, 770, 796, 910, 995, 1001, 1393, 1430, 1540, 1820, 1990, 2002, 2189, 2587, 2786, 2860, 3980, 4004, 4378, 5005, 5174, 5572, 6965, 8756, 10010, 10348, 10945, 12935, 13930, 15323, 18109, 20020, 21890, 25870, 27860, 28457, 30646, 36218, 43780, 51740, 56914, 61292, 72436, 76615, 90545, 113828, 142285, 153230, 181090, 199199, 284570, 306460, 362180, 398398, 569140, 796796, 995995, 1991990, 3983980]

約数ペア:

[(1, 3983980), (2, 1991990), (4, 995995), (5, 796796), (7, 569140), (10, 398398), (11, 362180), (13, 306460), (14, 284570), (20, 199199), (22, 181090), (26, 153230), (28, 142285), (35, 113828), (44, 90545), (52, 76615), (55, 72436), (65, 61292), (70, 56914), (77, 51740), (91, 43780), (110, 36218), (130, 30646), (140, 28457), (143, 27860), (154, 25870), (182, 21890), (199, 20020), (220, 18109), (260, 15323), (286, 13930), (308, 12935), (364, 10945), (385, 10348), (398, 10010), (455, 8756), (572, 6965), (715, 5572), (770, 5174), (796, 5005), (910, 4378), (995, 4004), (1001, 3980), (1393, 2860), (1430, 2786), (1540, 2587), (1820, 2189), (1990, 2002)]