90339760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{457}}^1$

素因数の和:830

約数の個数: 80

約数和(自身を含む): 241252416

約数和(自身を除く): 150912656

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 353, 457, 560, 706, 914, 1412, 1765, 1828, 2285, 2471, 2824, 3199, 3530, 3656, 4570, 4942, 5648, 6398, 7060, 7312, 9140, 9884, 12355, 12796, 14120, 15995, 18280, 19768, 24710, 25592, 28240, 31990, 36560, 39536, 49420, 51184, 63980, 98840, 127960, 161321, 197680, 255920, 322642, 645284, 806605, 1129247, 1290568, 1613210, 2258494, 2581136, 3226420, 4516988, 5646235, 6452840, 9033976, 11292470, 12905680, 18067952, 22584940, 45169880, 90339760]

約数ペア:

[(1, 90339760), (2, 45169880), (4, 22584940), (5, 18067952), (7, 12905680), (8, 11292470), (10, 9033976), (14, 6452840), (16, 5646235), (20, 4516988), (28, 3226420), (35, 2581136), (40, 2258494), (56, 1613210), (70, 1290568), (80, 1129247), (112, 806605), (140, 645284), (280, 322642), (353, 255920), (457, 197680), (560, 161321), (706, 127960), (914, 98840), (1412, 63980), (1765, 51184), (1828, 49420), (2285, 39536), (2471, 36560), (2824, 31990), (3199, 28240), (3530, 25592), (3656, 24710), (4570, 19768), (4942, 18280), (5648, 15995), (6398, 14120), (7060, 12796), (7312, 12355), (9140, 9884)]