890991795

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{1609}}^1$

素因数の和:1732

約数の個数: 64

約数和(自身を含む): 1576512000

約数和(自身を除く): 685520205

約数列:

[1, 3, 5, 15, 19, 29, 57, 67, 87, 95, 145, 201, 285, 335, 435, 551, 1005, 1273, 1609, 1653, 1943, 2755, 3819, 4827, 5829, 6365, 8045, 8265, 9715, 19095, 24135, 29145, 30571, 36917, 46661, 91713, 107803, 110751, 139983, 152855, 184585, 233305, 323409, 458565, 539015, 553755, 699915, 886559, 1617045, 2048257, 2659677, 3126287, 4432795, 6144771, 9378861, 10241285, 13298385, 15631435, 30723855, 46894305, 59399453, 178198359, 296997265, 890991795]

約数ペア:

[(1, 890991795), (3, 296997265), (5, 178198359), (15, 59399453), (19, 46894305), (29, 30723855), (57, 15631435), (67, 13298385), (87, 10241285), (95, 9378861), (145, 6144771), (201, 4432795), (285, 3126287), (335, 2659677), (435, 2048257), (551, 1617045), (1005, 886559), (1273, 699915), (1609, 553755), (1653, 539015), (1943, 458565), (2755, 323409), (3819, 233305), (4827, 184585), (5829, 152855), (6365, 139983), (8045, 110751), (8265, 107803), (9715, 91713), (19095, 46661), (24135, 36917), (29145, 30571)]