397756520

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{53}}^1\times {\mathrm{547}}^1$

素因数の和:632

約数の個数: 128

約数和(自身を含む): 1065312000

約数和(自身を除く): 667555480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 53, 56, 70, 98, 106, 140, 196, 212, 245, 265, 280, 343, 371, 392, 424, 490, 530, 547, 686, 742, 980, 1060, 1094, 1372, 1484, 1715, 1855, 1960, 2120, 2188, 2597, 2735, 2744, 2968, 3430, 3710, 3829, 4376, 5194, 5470, 6860, 7420, 7658, 10388, 10940, 12985, 13720, 14840, 15316, 18179, 19145, 20776, 21880, 25970, 26803, 28991, 30632, 36358, 38290, 51940, 53606, 57982, 72716, 76580, 90895, 103880, 107212, 115964, 134015, 144955, 145432, 153160, 181790, 187621, 202937, 214424, 231928, 268030, 289910, 363580, 375242, 405874, 536060, 579820, 727160, 750484, 811748, 938105, 1014685, 1072120, 1159640, 1420559, 1500968, 1623496, 1876210, 2029370, 2841118, 3752420, 4058740, 5682236, 7102795, 7504840, 8117480, 9943913, 11364472, 14205590, 19887826, 28411180, 39775652, 49719565, 56822360, 79551304, 99439130, 198878260, 397756520]

約数ペア:

[(1, 397756520), (2, 198878260), (4, 99439130), (5, 79551304), (7, 56822360), (8, 49719565), (10, 39775652), (14, 28411180), (20, 19887826), (28, 14205590), (35, 11364472), (40, 9943913), (49, 8117480), (53, 7504840), (56, 7102795), (70, 5682236), (98, 4058740), (106, 3752420), (140, 2841118), (196, 2029370), (212, 1876210), (245, 1623496), (265, 1500968), (280, 1420559), (343, 1159640), (371, 1072120), (392, 1014685), (424, 938105), (490, 811748), (530, 750484), (547, 727160), (686, 579820), (742, 536060), (980, 405874), (1060, 375242), (1094, 363580), (1372, 289910), (1484, 268030), (1715, 231928), (1855, 214424), (1960, 202937), (2120, 187621), (2188, 181790), (2597, 153160), (2735, 145432), (2744, 144955), (2968, 134015), (3430, 115964), (3710, 107212), (3829, 103880), (4376, 90895), (5194, 76580), (5470, 72716), (6860, 57982), (7420, 53606), (7658, 51940), (10388, 38290), (10940, 36358), (12985, 30632), (13720, 28991), (14840, 26803), (15316, 25970), (18179, 21880), (19145, 20776)]