400145208

素因数分解:

$2^3\times 3^1\times {\mathrm{71}}^1\times {\mathrm{449}}^1\times {\mathrm{523}}^1$

素因数の和:1052

約数の個数: 64

約数和(自身を含む): 1018656000

約数和(自身を除く): 618510792

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 71, 142, 213, 284, 426, 449, 523, 568, 852, 898, 1046, 1347, 1569, 1704, 1796, 2092, 2694, 3138, 3592, 4184, 5388, 6276, 10776, 12552, 31879, 37133, 63758, 74266, 95637, 111399, 127516, 148532, 191274, 222798, 234827, 255032, 297064, 382548, 445596, 469654, 704481, 765096, 891192, 939308, 1408962, 1878616, 2817924, 5635848, 16672717, 33345434, 50018151, 66690868, 100036302, 133381736, 200072604, 400145208]

約数ペア:

[(1, 400145208), (2, 200072604), (3, 133381736), (4, 100036302), (6, 66690868), (8, 50018151), (12, 33345434), (24, 16672717), (71, 5635848), (142, 2817924), (213, 1878616), (284, 1408962), (426, 939308), (449, 891192), (523, 765096), (568, 704481), (852, 469654), (898, 445596), (1046, 382548), (1347, 297064), (1569, 255032), (1704, 234827), (1796, 222798), (2092, 191274), (2694, 148532), (3138, 127516), (3592, 111399), (4184, 95637), (5388, 74266), (6276, 63758), (10776, 37133), (12552, 31879)]