77778900

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{28807}}^1$

素因数の和:28830

約数の個数: 72

約数和(自身を含む): 250053440

約数和(自身を除く): 172274540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 90, 100, 108, 135, 150, 180, 225, 270, 300, 450, 540, 675, 900, 1350, 2700, 28807, 57614, 86421, 115228, 144035, 172842, 259263, 288070, 345684, 432105, 518526, 576140, 720175, 777789, 864210, 1037052, 1296315, 1440350, 1555578, 1728420, 2160525, 2592630, 2880700, 3111156, 3888945, 4321050, 5185260, 6481575, 7777890, 8642100, 12963150, 15555780, 19444725, 25926300, 38889450, 77778900]

約数ペア:

[(1, 77778900), (2, 38889450), (3, 25926300), (4, 19444725), (5, 15555780), (6, 12963150), (9, 8642100), (10, 7777890), (12, 6481575), (15, 5185260), (18, 4321050), (20, 3888945), (25, 3111156), (27, 2880700), (30, 2592630), (36, 2160525), (45, 1728420), (50, 1555578), (54, 1440350), (60, 1296315), (75, 1037052), (90, 864210), (100, 777789), (108, 720175), (135, 576140), (150, 518526), (180, 432105), (225, 345684), (270, 288070), (300, 259263), (450, 172842), (540, 144035), (675, 115228), (900, 86421), (1350, 57614), (2700, 28807)]