161603820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{128257}}^1$

素因数の和:128279

約数の個数: 72

約数和(自身を含む): 560230944

約数和(自身を除く): 398627124

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 128257, 256514, 384771, 513028, 641285, 769542, 897799, 1154313, 1282570, 1539084, 1795598, 1923855, 2308626, 2565140, 2693397, 3591196, 3847710, 4488995, 4617252, 5386794, 5771565, 7695420, 8080191, 8977990, 10773588, 11543130, 13466985, 16160382, 17955980, 23086260, 26933970, 32320764, 40400955, 53867940, 80801910, 161603820]

約数ペア:

[(1, 161603820), (2, 80801910), (3, 53867940), (4, 40400955), (5, 32320764), (6, 26933970), (7, 23086260), (9, 17955980), (10, 16160382), (12, 13466985), (14, 11543130), (15, 10773588), (18, 8977990), (20, 8080191), (21, 7695420), (28, 5771565), (30, 5386794), (35, 4617252), (36, 4488995), (42, 3847710), (45, 3591196), (60, 2693397), (63, 2565140), (70, 2308626), (84, 1923855), (90, 1795598), (105, 1539084), (126, 1282570), (140, 1154313), (180, 897799), (210, 769542), (252, 641285), (315, 513028), (420, 384771), (630, 256514), (1260, 128257)]