40179440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{457}}^1$

素因数の和:634

約数の個数: 80

約数和(自身を含む): 107677632

約数和(自身を除く): 67498192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 157, 280, 314, 457, 560, 628, 785, 914, 1099, 1256, 1570, 1828, 2198, 2285, 2512, 3140, 3199, 3656, 4396, 4570, 5495, 6280, 6398, 7312, 8792, 9140, 10990, 12560, 12796, 15995, 17584, 18280, 21980, 25592, 31990, 36560, 43960, 51184, 63980, 71749, 87920, 127960, 143498, 255920, 286996, 358745, 502243, 573992, 717490, 1004486, 1147984, 1434980, 2008972, 2511215, 2869960, 4017944, 5022430, 5739920, 8035888, 10044860, 20089720, 40179440]

約数ペア:

[(1, 40179440), (2, 20089720), (4, 10044860), (5, 8035888), (7, 5739920), (8, 5022430), (10, 4017944), (14, 2869960), (16, 2511215), (20, 2008972), (28, 1434980), (35, 1147984), (40, 1004486), (56, 717490), (70, 573992), (80, 502243), (112, 358745), (140, 286996), (157, 255920), (280, 143498), (314, 127960), (457, 87920), (560, 71749), (628, 63980), (785, 51184), (914, 43960), (1099, 36560), (1256, 31990), (1570, 25592), (1828, 21980), (2198, 18280), (2285, 17584), (2512, 15995), (3140, 12796), (3199, 12560), (3656, 10990), (4396, 9140), (4570, 8792), (5495, 7312), (6280, 6398)]