256450440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{125711}}^1$

素因数の和:125742

約数の個数: 64

約数和(自身を含む): 814613760

約数和(自身を除く): 558163320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 125711, 251422, 377133, 502844, 628555, 754266, 1005688, 1257110, 1508532, 1885665, 2137087, 2514220, 3017064, 3771330, 4274174, 5028440, 6411261, 7542660, 8548348, 10685435, 12822522, 15085320, 17096696, 21370870, 25645044, 32056305, 42741740, 51290088, 64112610, 85483480, 128225220, 256450440]

約数ペア:

[(1, 256450440), (2, 128225220), (3, 85483480), (4, 64112610), (5, 51290088), (6, 42741740), (8, 32056305), (10, 25645044), (12, 21370870), (15, 17096696), (17, 15085320), (20, 12822522), (24, 10685435), (30, 8548348), (34, 7542660), (40, 6411261), (51, 5028440), (60, 4274174), (68, 3771330), (85, 3017064), (102, 2514220), (120, 2137087), (136, 1885665), (170, 1508532), (204, 1257110), (255, 1005688), (340, 754266), (408, 628555), (510, 502844), (680, 377133), (1020, 251422), (2040, 125711)]