1281258440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{415993}}^1$

素因数の和:416022

約数の個数: 64

約数和(自身を含む): 3594188160

約数和(自身を除く): 2312929720

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 415993, 831986, 1663972, 2079965, 2911951, 3327944, 4159930, 4575923, 5823902, 8319860, 9151846, 11647804, 14559755, 16639720, 18303692, 22879615, 23295608, 29119510, 32031461, 36607384, 45759230, 58239020, 64062922, 91518460, 116478040, 128125844, 160157305, 183036920, 256251688, 320314610, 640629220, 1281258440]

約数ペア:

[(1, 1281258440), (2, 640629220), (4, 320314610), (5, 256251688), (7, 183036920), (8, 160157305), (10, 128125844), (11, 116478040), (14, 91518460), (20, 64062922), (22, 58239020), (28, 45759230), (35, 36607384), (40, 32031461), (44, 29119510), (55, 23295608), (56, 22879615), (70, 18303692), (77, 16639720), (88, 14559755), (110, 11647804), (140, 9151846), (154, 8319860), (220, 5823902), (280, 4575923), (308, 4159930), (385, 3327944), (440, 2911951), (616, 2079965), (770, 1663972), (1540, 831986), (3080, 415993)]