20954450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1229}}^1$

素因数の和:1283

約数の個数: 48

約数和(自身を含む): 43925760

約数和(自身を除く): 22971310

約数列:

[1, 2, 5, 10, 11, 22, 25, 31, 50, 55, 62, 110, 155, 275, 310, 341, 550, 682, 775, 1229, 1550, 1705, 2458, 3410, 6145, 8525, 12290, 13519, 17050, 27038, 30725, 38099, 61450, 67595, 76198, 135190, 190495, 337975, 380990, 419089, 675950, 838178, 952475, 1904950, 2095445, 4190890, 10477225, 20954450]

約数ペア:

[(1, 20954450), (2, 10477225), (5, 4190890), (10, 2095445), (11, 1904950), (22, 952475), (25, 838178), (31, 675950), (50, 419089), (55, 380990), (62, 337975), (110, 190495), (155, 135190), (275, 76198), (310, 67595), (341, 61450), (550, 38099), (682, 30725), (775, 27038), (1229, 17050), (1550, 13519), (1705, 12290), (2458, 8525), (3410, 6145)]