3998540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^4$

素因数の和:68

約数の個数: 60

約数和(自身を含む): 10396176

約数和(自身を除く): 6397636

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 169, 182, 260, 338, 364, 455, 676, 845, 910, 1183, 1690, 1820, 2197, 2366, 3380, 4394, 4732, 5915, 8788, 10985, 11830, 15379, 21970, 23660, 28561, 30758, 43940, 57122, 61516, 76895, 114244, 142805, 153790, 199927, 285610, 307580, 399854, 571220, 799708, 999635, 1999270, 3998540]

約数ペア:

[(1, 3998540), (2, 1999270), (4, 999635), (5, 799708), (7, 571220), (10, 399854), (13, 307580), (14, 285610), (20, 199927), (26, 153790), (28, 142805), (35, 114244), (52, 76895), (65, 61516), (70, 57122), (91, 43940), (130, 30758), (140, 28561), (169, 23660), (182, 21970), (260, 15379), (338, 11830), (364, 10985), (455, 8788), (676, 5915), (845, 4732), (910, 4394), (1183, 3380), (1690, 2366), (1820, 2197)]