71127280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{809}}^1$

素因数の和:986

約数の個数: 80

約数和(自身を含む): 190434240

約数和(自身を除く): 119306960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 157, 280, 314, 560, 628, 785, 809, 1099, 1256, 1570, 1618, 2198, 2512, 3140, 3236, 4045, 4396, 5495, 5663, 6280, 6472, 8090, 8792, 10990, 11326, 12560, 12944, 16180, 17584, 21980, 22652, 28315, 32360, 43960, 45304, 56630, 64720, 87920, 90608, 113260, 127013, 226520, 254026, 453040, 508052, 635065, 889091, 1016104, 1270130, 1778182, 2032208, 2540260, 3556364, 4445455, 5080520, 7112728, 8890910, 10161040, 14225456, 17781820, 35563640, 71127280]

約数ペア:

[(1, 71127280), (2, 35563640), (4, 17781820), (5, 14225456), (7, 10161040), (8, 8890910), (10, 7112728), (14, 5080520), (16, 4445455), (20, 3556364), (28, 2540260), (35, 2032208), (40, 1778182), (56, 1270130), (70, 1016104), (80, 889091), (112, 635065), (140, 508052), (157, 453040), (280, 254026), (314, 226520), (560, 127013), (628, 113260), (785, 90608), (809, 87920), (1099, 64720), (1256, 56630), (1570, 45304), (1618, 43960), (2198, 32360), (2512, 28315), (3140, 22652), (3236, 21980), (4045, 17584), (4396, 16180), (5495, 12944), (5663, 12560), (6280, 11326), (6472, 10990), (8090, 8792)]