38780500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^2\times {\mathrm{641}}^1$

素因数の和:682

約数の個数: 72

約数和(自身を含む): 93241512

約数和(自身を除く): 54461012

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 125, 220, 242, 250, 275, 484, 500, 550, 605, 641, 1100, 1210, 1282, 1375, 2420, 2564, 2750, 3025, 3205, 5500, 6050, 6410, 7051, 12100, 12820, 14102, 15125, 16025, 28204, 30250, 32050, 35255, 60500, 64100, 70510, 77561, 80125, 141020, 155122, 160250, 176275, 310244, 320500, 352550, 387805, 705100, 775610, 881375, 1551220, 1762750, 1939025, 3525500, 3878050, 7756100, 9695125, 19390250, 38780500]

約数ペア:

[(1, 38780500), (2, 19390250), (4, 9695125), (5, 7756100), (10, 3878050), (11, 3525500), (20, 1939025), (22, 1762750), (25, 1551220), (44, 881375), (50, 775610), (55, 705100), (100, 387805), (110, 352550), (121, 320500), (125, 310244), (220, 176275), (242, 160250), (250, 155122), (275, 141020), (484, 80125), (500, 77561), (550, 70510), (605, 64100), (641, 60500), (1100, 35255), (1210, 32050), (1282, 30250), (1375, 28204), (2420, 16025), (2564, 15125), (2750, 14102), (3025, 12820), (3205, 12100), (5500, 7051), (6050, 6410)]