256428720

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{118717}}^1$

素因数の和:118739

約数の個数: 80

約数和(自身を含む): 883261920

約数和(自身を除く): 626833200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 118717, 237434, 356151, 474868, 593585, 712302, 949736, 1068453, 1187170, 1424604, 1780755, 1899472, 2136906, 2374340, 2849208, 3205359, 3561510, 4273812, 4748680, 5342265, 5698416, 6410718, 7123020, 8547624, 9497360, 10684530, 12821436, 14246040, 16026795, 17095248, 21369060, 25642872, 28492080, 32053590, 42738120, 51285744, 64107180, 85476240, 128214360, 256428720]

約数ペア:

[(1, 256428720), (2, 128214360), (3, 85476240), (4, 64107180), (5, 51285744), (6, 42738120), (8, 32053590), (9, 28492080), (10, 25642872), (12, 21369060), (15, 17095248), (16, 16026795), (18, 14246040), (20, 12821436), (24, 10684530), (27, 9497360), (30, 8547624), (36, 7123020), (40, 6410718), (45, 5698416), (48, 5342265), (54, 4748680), (60, 4273812), (72, 3561510), (80, 3205359), (90, 2849208), (108, 2374340), (120, 2136906), (135, 1899472), (144, 1780755), (180, 1424604), (216, 1187170), (240, 1068453), (270, 949736), (360, 712302), (432, 593585), (540, 474868), (720, 356151), (1080, 237434), (2160, 118717)]