20855990400

素因数分解:

$2^7\times 3^1\times 5^2\times 7^1\times {\mathrm{310357}}^1$

素因数の和:310391

約数の個数: 192

約数和(自身を含む): 78508159680

約数和(自身を除く): 57652169280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 32, 35, 40, 42, 48, 50, 56, 60, 64, 70, 75, 80, 84, 96, 100, 105, 112, 120, 128, 140, 150, 160, 168, 175, 192, 200, 210, 224, 240, 280, 300, 320, 336, 350, 384, 400, 420, 448, 480, 525, 560, 600, 640, 672, 700, 800, 840, 896, 960, 1050, 1120, 1200, 1344, 1400, 1600, 1680, 1920, 2100, 2240, 2400, 2688, 2800, 3200, 3360, 4200, 4480, 4800, 5600, 6720, 8400, 9600, 11200, 13440, 16800, 22400, 33600, 67200, 310357, 620714, 931071, 1241428, 1551785, 1862142, 2172499, 2482856, 3103570, 3724284, 4344998, 4655355, 4965712, 6207140, 6517497, 7448568, 7758925, 8689996, 9310710, 9931424, 10862495, 12414280, 13034994, 14897136, 15517850, 17379992, 18621420, 19862848, 21724990, 23276775, 24828560, 26069988, 29794272, 31035700, 32587485, 34759984, 37242840, 39725696, 43449980, 46553550, 49657120, 52139976, 54312475, 59588544, 62071400, 65174970, 69519968, 74485680, 86899960, 93107100, 99314240, 104279952, 108624950, 119177088, 124142800, 130349940, 139039936, 148971360, 162937425, 173799920, 186214200, 198628480, 208559904, 217249900, 248285600, 260699880, 278079872, 297942720, 325874850, 347599840, 372428400, 417119808, 434499800, 496571200, 521399760, 595885440, 651749700, 695199680, 744856800, 834239616, 868999600, 993142400, 1042799520, 1303499400, 1390399360, 1489713600, 1737999200, 2085599040, 2606998800, 2979427200, 3475998400, 4171198080, 5213997600, 6951996800, 10427995200, 20855990400]

約数ペア:

[(1, 20855990400), (2, 10427995200), (3, 6951996800), (4, 5213997600), (5, 4171198080), (6, 3475998400), (7, 2979427200), (8, 2606998800), (10, 2085599040), (12, 1737999200), (14, 1489713600), (15, 1390399360), (16, 1303499400), (20, 1042799520), (21, 993142400), (24, 868999600), (25, 834239616), (28, 744856800), (30, 695199680), (32, 651749700), (35, 595885440), (40, 521399760), (42, 496571200), (48, 434499800), (50, 417119808), (56, 372428400), (60, 347599840), (64, 325874850), (70, 297942720), (75, 278079872), (80, 260699880), (84, 248285600), (96, 217249900), (100, 208559904), (105, 198628480), (112, 186214200), (120, 173799920), (128, 162937425), (140, 148971360), (150, 139039936), (160, 130349940), (168, 124142800), (175, 119177088), (192, 108624950), (200, 104279952), (210, 99314240), (224, 93107100), (240, 86899960), (280, 74485680), (300, 69519968), (320, 65174970), (336, 62071400), (350, 59588544), (384, 54312475), (400, 52139976), (420, 49657120), (448, 46553550), (480, 43449980), (525, 39725696), (560, 37242840), (600, 34759984), (640, 32587485), (672, 31035700), (700, 29794272), (800, 26069988), (840, 24828560), (896, 23276775), (960, 21724990), (1050, 19862848), (1120, 18621420), (1200, 17379992), (1344, 15517850), (1400, 14897136), (1600, 13034994), (1680, 12414280), (1920, 10862495), (2100, 9931424), (2240, 9310710), (2400, 8689996), (2688, 7758925), (2800, 7448568), (3200, 6517497), (3360, 6207140), (4200, 4965712), (4480, 4655355), (4800, 4344998), (5600, 3724284), (6720, 3103570), (8400, 2482856), (9600, 2172499), (11200, 1862142), (13440, 1551785), (16800, 1241428), (22400, 931071), (33600, 620714), (67200, 310357)]