81959640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{97571}}^1$

素因数の和:97592

約数の個数: 64

約数和(自身を含む): 281007360

約数和(自身を除く): 199047720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 97571, 195142, 292713, 390284, 487855, 585426, 682997, 780568, 975710, 1170852, 1365994, 1463565, 1951420, 2048991, 2341704, 2731988, 2927130, 3414985, 3902840, 4097982, 5463976, 5854260, 6829970, 8195964, 10244955, 11708520, 13659940, 16391928, 20489910, 27319880, 40979820, 81959640]

約数ペア:

[(1, 81959640), (2, 40979820), (3, 27319880), (4, 20489910), (5, 16391928), (6, 13659940), (7, 11708520), (8, 10244955), (10, 8195964), (12, 6829970), (14, 5854260), (15, 5463976), (20, 4097982), (21, 3902840), (24, 3414985), (28, 2927130), (30, 2731988), (35, 2341704), (40, 2048991), (42, 1951420), (56, 1463565), (60, 1365994), (70, 1170852), (84, 975710), (105, 780568), (120, 682997), (140, 585426), (168, 487855), (210, 390284), (280, 292713), (420, 195142), (840, 97571)]