81719880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61909}}^1$

素因数の和:61934

約数の個数: 64

約数和(自身を含む): 267451200

約数和(自身を除く): 185731320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 61909, 123818, 185727, 247636, 309545, 371454, 495272, 619090, 680999, 742908, 928635, 1238180, 1361998, 1485816, 1857270, 2042997, 2476360, 2723996, 3404995, 3714540, 4085994, 5447992, 6809990, 7429080, 8171988, 10214985, 13619980, 16343976, 20429970, 27239960, 40859940, 81719880]

約数ペア:

[(1, 81719880), (2, 40859940), (3, 27239960), (4, 20429970), (5, 16343976), (6, 13619980), (8, 10214985), (10, 8171988), (11, 7429080), (12, 6809990), (15, 5447992), (20, 4085994), (22, 3714540), (24, 3404995), (30, 2723996), (33, 2476360), (40, 2042997), (44, 1857270), (55, 1485816), (60, 1361998), (66, 1238180), (88, 928635), (110, 742908), (120, 680999), (132, 619090), (165, 495272), (220, 371454), (264, 309545), (330, 247636), (440, 185727), (660, 123818), (1320, 61909)]