28268900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{829}}^1$

素因数の和:885

約数の個数: 72

約数和(自身を含む): 69162240

約数和(自身を除く): 40893340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 31, 44, 50, 55, 62, 100, 110, 124, 155, 220, 275, 310, 341, 550, 620, 682, 775, 829, 1100, 1364, 1550, 1658, 1705, 3100, 3316, 3410, 4145, 6820, 8290, 8525, 9119, 16580, 17050, 18238, 20725, 25699, 34100, 36476, 41450, 45595, 51398, 82900, 91190, 102796, 128495, 182380, 227975, 256990, 282689, 455950, 513980, 565378, 642475, 911900, 1130756, 1284950, 1413445, 2569900, 2826890, 5653780, 7067225, 14134450, 28268900]

約数ペア:

[(1, 28268900), (2, 14134450), (4, 7067225), (5, 5653780), (10, 2826890), (11, 2569900), (20, 1413445), (22, 1284950), (25, 1130756), (31, 911900), (44, 642475), (50, 565378), (55, 513980), (62, 455950), (100, 282689), (110, 256990), (124, 227975), (155, 182380), (220, 128495), (275, 102796), (310, 91190), (341, 82900), (550, 51398), (620, 45595), (682, 41450), (775, 36476), (829, 34100), (1100, 25699), (1364, 20725), (1550, 18238), (1658, 17050), (1705, 16580), (3100, 9119), (3316, 8525), (3410, 8290), (4145, 6820)]