318206720

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1471}}^1$

素因数の和:1518

約数の個数: 108

約数和(自身を含む): 825906816

約数和(自身を除く): 507700096

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 169, 208, 256, 260, 320, 338, 416, 520, 640, 676, 832, 845, 1040, 1280, 1352, 1471, 1664, 1690, 2080, 2704, 2942, 3328, 3380, 4160, 5408, 5884, 6760, 7355, 8320, 10816, 11768, 13520, 14710, 16640, 19123, 21632, 23536, 27040, 29420, 38246, 43264, 47072, 54080, 58840, 76492, 94144, 95615, 108160, 117680, 152984, 188288, 191230, 216320, 235360, 248599, 305968, 376576, 382460, 470720, 497198, 611936, 764920, 941440, 994396, 1223872, 1242995, 1529840, 1882880, 1988792, 2447744, 2485990, 3059680, 3977584, 4895488, 4971980, 6119360, 7955168, 9943960, 12238720, 15910336, 19887920, 24477440, 31820672, 39775840, 63641344, 79551680, 159103360, 318206720]

約数ペア:

[(1, 318206720), (2, 159103360), (4, 79551680), (5, 63641344), (8, 39775840), (10, 31820672), (13, 24477440), (16, 19887920), (20, 15910336), (26, 12238720), (32, 9943960), (40, 7955168), (52, 6119360), (64, 4971980), (65, 4895488), (80, 3977584), (104, 3059680), (128, 2485990), (130, 2447744), (160, 1988792), (169, 1882880), (208, 1529840), (256, 1242995), (260, 1223872), (320, 994396), (338, 941440), (416, 764920), (520, 611936), (640, 497198), (676, 470720), (832, 382460), (845, 376576), (1040, 305968), (1280, 248599), (1352, 235360), (1471, 216320), (1664, 191230), (1690, 188288), (2080, 152984), (2704, 117680), (2942, 108160), (3328, 95615), (3380, 94144), (4160, 76492), (5408, 58840), (5884, 54080), (6760, 47072), (7355, 43264), (8320, 38246), (10816, 29420), (11768, 27040), (13520, 23536), (14710, 21632), (16640, 19123)]