7854817720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{34457}}^1$

素因数の和:34648

約数の個数: 64

約数和(自身を含む): 18235173600

約数和(自身を除く): 10380355880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 139, 164, 205, 278, 328, 410, 556, 695, 820, 1112, 1390, 1640, 2780, 5560, 5699, 11398, 22796, 28495, 34457, 45592, 56990, 68914, 113980, 137828, 172285, 227960, 275656, 344570, 689140, 1378280, 1412737, 2825474, 4789523, 5650948, 7063685, 9579046, 11301896, 14127370, 19158092, 23947615, 28254740, 38316184, 47895230, 56509480, 95790460, 191580920, 196370443, 392740886, 785481772, 981852215, 1570963544, 1963704430, 3927408860, 7854817720]

約数ペア:

[(1, 7854817720), (2, 3927408860), (4, 1963704430), (5, 1570963544), (8, 981852215), (10, 785481772), (20, 392740886), (40, 196370443), (41, 191580920), (82, 95790460), (139, 56509480), (164, 47895230), (205, 38316184), (278, 28254740), (328, 23947615), (410, 19158092), (556, 14127370), (695, 11301896), (820, 9579046), (1112, 7063685), (1390, 5650948), (1640, 4789523), (2780, 2825474), (5560, 1412737), (5699, 1378280), (11398, 689140), (22796, 344570), (28495, 275656), (34457, 227960), (45592, 172285), (56990, 137828), (68914, 113980)]