78548960

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{233}}^1$

素因数の和:305

約数の個数: 144

約数和(自身を含む): 221837616

約数和(自身を除く): 143288656

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 49, 56, 70, 80, 86, 98, 112, 140, 160, 172, 196, 215, 224, 233, 245, 280, 301, 344, 392, 430, 466, 490, 560, 602, 688, 784, 860, 932, 980, 1120, 1165, 1204, 1376, 1505, 1568, 1631, 1720, 1864, 1960, 2107, 2330, 2408, 3010, 3262, 3440, 3728, 3920, 4214, 4660, 4816, 6020, 6524, 6880, 7456, 7840, 8155, 8428, 9320, 9632, 10019, 10535, 11417, 12040, 13048, 16310, 16856, 18640, 20038, 21070, 22834, 24080, 26096, 32620, 33712, 37280, 40076, 42140, 45668, 48160, 50095, 52192, 57085, 65240, 67424, 70133, 80152, 84280, 91336, 100190, 114170, 130480, 140266, 160304, 168560, 182672, 200380, 228340, 260960, 280532, 320608, 337120, 350665, 365344, 400760, 456680, 490931, 561064, 701330, 801520, 913360, 981862, 1122128, 1402660, 1603040, 1826720, 1963724, 2244256, 2454655, 2805320, 3927448, 4909310, 5610640, 7854896, 9818620, 11221280, 15709792, 19637240, 39274480, 78548960]

約数ペア:

[(1, 78548960), (2, 39274480), (4, 19637240), (5, 15709792), (7, 11221280), (8, 9818620), (10, 7854896), (14, 5610640), (16, 4909310), (20, 3927448), (28, 2805320), (32, 2454655), (35, 2244256), (40, 1963724), (43, 1826720), (49, 1603040), (56, 1402660), (70, 1122128), (80, 981862), (86, 913360), (98, 801520), (112, 701330), (140, 561064), (160, 490931), (172, 456680), (196, 400760), (215, 365344), (224, 350665), (233, 337120), (245, 320608), (280, 280532), (301, 260960), (344, 228340), (392, 200380), (430, 182672), (466, 168560), (490, 160304), (560, 140266), (602, 130480), (688, 114170), (784, 100190), (860, 91336), (932, 84280), (980, 80152), (1120, 70133), (1165, 67424), (1204, 65240), (1376, 57085), (1505, 52192), (1568, 50095), (1631, 48160), (1720, 45668), (1864, 42140), (1960, 40076), (2107, 37280), (2330, 33712), (2408, 32620), (3010, 26096), (3262, 24080), (3440, 22834), (3728, 21070), (3920, 20038), (4214, 18640), (4660, 16856), (4816, 16310), (6020, 13048), (6524, 12040), (6880, 11417), (7456, 10535), (7840, 10019), (8155, 9632), (8428, 9320)]