205979500

素因数分解:

$2^2\times 5^3\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:284

約数の個数: 96

約数和(自身を含む): 472582656

約数和(自身を除く): 266603156

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 97, 100, 124, 125, 137, 155, 194, 250, 274, 310, 388, 485, 500, 548, 620, 685, 775, 970, 1370, 1550, 1940, 2425, 2740, 3007, 3100, 3425, 3875, 4247, 4850, 6014, 6850, 7750, 8494, 9700, 12028, 12125, 13289, 13700, 15035, 15500, 16988, 17125, 21235, 24250, 26578, 30070, 34250, 42470, 48500, 53156, 60140, 66445, 68500, 75175, 84940, 106175, 132890, 150350, 212350, 265780, 300700, 332225, 375875, 411959, 424700, 530875, 664450, 751750, 823918, 1061750, 1328900, 1503500, 1647836, 1661125, 2059795, 2123500, 3322250, 4119590, 6644500, 8239180, 10298975, 20597950, 41195900, 51494875, 102989750, 205979500]

約数ペア:

[(1, 205979500), (2, 102989750), (4, 51494875), (5, 41195900), (10, 20597950), (20, 10298975), (25, 8239180), (31, 6644500), (50, 4119590), (62, 3322250), (97, 2123500), (100, 2059795), (124, 1661125), (125, 1647836), (137, 1503500), (155, 1328900), (194, 1061750), (250, 823918), (274, 751750), (310, 664450), (388, 530875), (485, 424700), (500, 411959), (548, 375875), (620, 332225), (685, 300700), (775, 265780), (970, 212350), (1370, 150350), (1550, 132890), (1940, 106175), (2425, 84940), (2740, 75175), (3007, 68500), (3100, 66445), (3425, 60140), (3875, 53156), (4247, 48500), (4850, 42470), (6014, 34250), (6850, 30070), (7750, 26578), (8494, 24250), (9700, 21235), (12028, 17125), (12125, 16988), (13289, 15500), (13700, 15035)]