20080175720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{5779}}^1$

素因数の和:6003

約数の個数: 128

約数和(自身を含む): 50563440000

約数和(自身を除く): 30483264280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 53, 55, 88, 106, 110, 149, 212, 220, 265, 298, 424, 440, 530, 583, 596, 745, 1060, 1166, 1192, 1490, 1639, 2120, 2332, 2915, 2980, 3278, 4664, 5779, 5830, 5960, 6556, 7897, 8195, 11558, 11660, 13112, 15794, 16390, 23116, 23320, 28895, 31588, 32780, 39485, 46232, 57790, 63176, 63569, 65560, 78970, 86867, 115580, 127138, 157940, 173734, 231160, 254276, 306287, 315880, 317845, 347468, 434335, 508552, 612574, 635690, 694936, 861071, 868670, 1225148, 1271380, 1531435, 1722142, 1737340, 2450296, 2542760, 3062870, 3369157, 3444284, 3474680, 4305355, 6125740, 6738314, 6888568, 8610710, 9471781, 12251480, 13476628, 16845785, 17221420, 18943562, 26953256, 33691570, 34442840, 37887124, 45636763, 47358905, 67383140, 75774248, 91273526, 94717810, 134766280, 182547052, 189435620, 228183815, 365094104, 378871240, 456367630, 502004393, 912735260, 1004008786, 1825470520, 2008017572, 2510021965, 4016035144, 5020043930, 10040087860, 20080175720]

約数ペア:

[(1, 20080175720), (2, 10040087860), (4, 5020043930), (5, 4016035144), (8, 2510021965), (10, 2008017572), (11, 1825470520), (20, 1004008786), (22, 912735260), (40, 502004393), (44, 456367630), (53, 378871240), (55, 365094104), (88, 228183815), (106, 189435620), (110, 182547052), (149, 134766280), (212, 94717810), (220, 91273526), (265, 75774248), (298, 67383140), (424, 47358905), (440, 45636763), (530, 37887124), (583, 34442840), (596, 33691570), (745, 26953256), (1060, 18943562), (1166, 17221420), (1192, 16845785), (1490, 13476628), (1639, 12251480), (2120, 9471781), (2332, 8610710), (2915, 6888568), (2980, 6738314), (3278, 6125740), (4664, 4305355), (5779, 3474680), (5830, 3444284), (5960, 3369157), (6556, 3062870), (7897, 2542760), (8195, 2450296), (11558, 1737340), (11660, 1722142), (13112, 1531435), (15794, 1271380), (16390, 1225148), (23116, 868670), (23320, 861071), (28895, 694936), (31588, 635690), (32780, 612574), (39485, 508552), (46232, 434335), (57790, 347468), (63176, 317845), (63569, 315880), (65560, 306287), (78970, 254276), (86867, 231160), (115580, 173734), (127138, 157940)]