349745920

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:310

約数の個数: 144

約数和(自身を含む): 898460640

約数和(自身を除く): 548714720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 73, 76, 80, 95, 128, 146, 152, 160, 190, 197, 256, 292, 304, 320, 365, 380, 394, 584, 608, 640, 730, 760, 788, 985, 1168, 1216, 1280, 1387, 1460, 1520, 1576, 1970, 2336, 2432, 2774, 2920, 3040, 3152, 3743, 3940, 4672, 4864, 5548, 5840, 6080, 6304, 6935, 7486, 7880, 9344, 11096, 11680, 12160, 12608, 13870, 14381, 14972, 15760, 18688, 18715, 22192, 23360, 24320, 25216, 27740, 28762, 29944, 31520, 37430, 44384, 46720, 50432, 55480, 57524, 59888, 63040, 71905, 74860, 88768, 93440, 110960, 115048, 119776, 126080, 143810, 149720, 177536, 221920, 230096, 239552, 252160, 273239, 287620, 299440, 355072, 443840, 460192, 479104, 546478, 575240, 598880, 887680, 920384, 958208, 1092956, 1150480, 1197760, 1366195, 1775360, 1840768, 2185912, 2300960, 2395520, 2732390, 3681536, 4371824, 4601920, 4791040, 5464780, 8743648, 9203840, 10929560, 17487296, 18407680, 21859120, 34974592, 43718240, 69949184, 87436480, 174872960, 349745920]

約数ペア:

[(1, 349745920), (2, 174872960), (4, 87436480), (5, 69949184), (8, 43718240), (10, 34974592), (16, 21859120), (19, 18407680), (20, 17487296), (32, 10929560), (38, 9203840), (40, 8743648), (64, 5464780), (73, 4791040), (76, 4601920), (80, 4371824), (95, 3681536), (128, 2732390), (146, 2395520), (152, 2300960), (160, 2185912), (190, 1840768), (197, 1775360), (256, 1366195), (292, 1197760), (304, 1150480), (320, 1092956), (365, 958208), (380, 920384), (394, 887680), (584, 598880), (608, 575240), (640, 546478), (730, 479104), (760, 460192), (788, 443840), (985, 355072), (1168, 299440), (1216, 287620), (1280, 273239), (1387, 252160), (1460, 239552), (1520, 230096), (1576, 221920), (1970, 177536), (2336, 149720), (2432, 143810), (2774, 126080), (2920, 119776), (3040, 115048), (3152, 110960), (3743, 93440), (3940, 88768), (4672, 74860), (4864, 71905), (5548, 63040), (5840, 59888), (6080, 57524), (6304, 55480), (6935, 50432), (7486, 46720), (7880, 44384), (9344, 37430), (11096, 31520), (11680, 29944), (12160, 28762), (12608, 27740), (13870, 25216), (14381, 24320), (14972, 23360), (15760, 22192), (18688, 18715)]