278370820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3557}}^1$

素因数の和:3629

約数の個数: 96

約数和(自身を含む): 736420608

約数和(自身を除く): 458049788

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 43, 52, 65, 70, 86, 91, 130, 140, 172, 182, 215, 260, 301, 364, 430, 455, 559, 602, 860, 910, 1118, 1204, 1505, 1820, 2236, 2795, 3010, 3557, 3913, 5590, 6020, 7114, 7826, 11180, 14228, 15652, 17785, 19565, 24899, 35570, 39130, 46241, 49798, 71140, 78260, 92482, 99596, 124495, 152951, 184964, 231205, 248990, 305902, 323687, 462410, 497980, 611804, 647374, 764755, 924820, 1070657, 1294748, 1529510, 1618435, 1988363, 2141314, 3059020, 3236870, 3976726, 4282628, 5353285, 6473740, 7953452, 9941815, 10706570, 13918541, 19883630, 21413140, 27837082, 39767260, 55674164, 69592705, 139185410, 278370820]

約数ペア:

[(1, 278370820), (2, 139185410), (4, 69592705), (5, 55674164), (7, 39767260), (10, 27837082), (13, 21413140), (14, 19883630), (20, 13918541), (26, 10706570), (28, 9941815), (35, 7953452), (43, 6473740), (52, 5353285), (65, 4282628), (70, 3976726), (86, 3236870), (91, 3059020), (130, 2141314), (140, 1988363), (172, 1618435), (182, 1529510), (215, 1294748), (260, 1070657), (301, 924820), (364, 764755), (430, 647374), (455, 611804), (559, 497980), (602, 462410), (860, 323687), (910, 305902), (1118, 248990), (1204, 231205), (1505, 184964), (1820, 152951), (2236, 124495), (2795, 99596), (3010, 92482), (3557, 78260), (3913, 71140), (5590, 49798), (6020, 46241), (7114, 39130), (7826, 35570), (11180, 24899), (14228, 19565), (15652, 17785)]