27820520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7643}}^1$

素因数の和:7674

約数の個数: 64

約数和(自身を含む): 77051520

約数和(自身を除く): 49231000

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 7643, 15286, 30572, 38215, 53501, 61144, 76430, 99359, 107002, 152860, 198718, 214004, 267505, 305720, 397436, 428008, 496795, 535010, 695513, 794872, 993590, 1070020, 1391026, 1987180, 2140040, 2782052, 3477565, 3974360, 5564104, 6955130, 13910260, 27820520]

約数ペア:

[(1, 27820520), (2, 13910260), (4, 6955130), (5, 5564104), (7, 3974360), (8, 3477565), (10, 2782052), (13, 2140040), (14, 1987180), (20, 1391026), (26, 1070020), (28, 993590), (35, 794872), (40, 695513), (52, 535010), (56, 496795), (65, 428008), (70, 397436), (91, 305720), (104, 267505), (130, 214004), (140, 198718), (182, 152860), (260, 107002), (280, 99359), (364, 76430), (455, 61144), (520, 53501), (728, 38215), (910, 30572), (1820, 15286), (3640, 7643)]