397792000

素因数分解:

$2^8\times 5^3\times {\mathrm{31}}^1\times {\mathrm{401}}^1$

素因数の和:463

約数の個数: 144

約数和(自身を含む): 1025466624

約数和(自身を除く): 627674624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 125, 128, 155, 160, 200, 248, 250, 256, 310, 320, 400, 401, 496, 500, 620, 640, 775, 800, 802, 992, 1000, 1240, 1280, 1550, 1600, 1604, 1984, 2000, 2005, 2480, 3100, 3200, 3208, 3875, 3968, 4000, 4010, 4960, 6200, 6400, 6416, 7750, 7936, 8000, 8020, 9920, 10025, 12400, 12431, 12832, 15500, 16000, 16040, 19840, 20050, 24800, 24862, 25664, 31000, 32000, 32080, 39680, 40100, 49600, 49724, 50125, 51328, 62000, 62155, 64160, 80200, 99200, 99448, 100250, 102656, 124000, 124310, 128320, 160400, 198400, 198896, 200500, 248000, 248620, 256640, 310775, 320800, 397792, 401000, 496000, 497240, 513280, 621550, 641600, 795584, 802000, 992000, 994480, 1243100, 1283200, 1553875, 1591168, 1604000, 1988960, 2486200, 2566400, 3107750, 3182336, 3208000, 3977920, 4972400, 6215500, 6416000, 7955840, 9944800, 12431000, 12832000, 15911680, 19889600, 24862000, 39779200, 49724000, 79558400, 99448000, 198896000, 397792000]

約数ペア:

[(1, 397792000), (2, 198896000), (4, 99448000), (5, 79558400), (8, 49724000), (10, 39779200), (16, 24862000), (20, 19889600), (25, 15911680), (31, 12832000), (32, 12431000), (40, 9944800), (50, 7955840), (62, 6416000), (64, 6215500), (80, 4972400), (100, 3977920), (124, 3208000), (125, 3182336), (128, 3107750), (155, 2566400), (160, 2486200), (200, 1988960), (248, 1604000), (250, 1591168), (256, 1553875), (310, 1283200), (320, 1243100), (400, 994480), (401, 992000), (496, 802000), (500, 795584), (620, 641600), (640, 621550), (775, 513280), (800, 497240), (802, 496000), (992, 401000), (1000, 397792), (1240, 320800), (1280, 310775), (1550, 256640), (1600, 248620), (1604, 248000), (1984, 200500), (2000, 198896), (2005, 198400), (2480, 160400), (3100, 128320), (3200, 124310), (3208, 124000), (3875, 102656), (3968, 100250), (4000, 99448), (4010, 99200), (4960, 80200), (6200, 64160), (6400, 62155), (6416, 62000), (7750, 51328), (7936, 50125), (8000, 49724), (8020, 49600), (9920, 40100), (10025, 39680), (12400, 32080), (12431, 32000), (12832, 31000), (15500, 25664), (16000, 24862), (16040, 24800), (19840, 20050)]