18966730

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:175

約数の個数: 64

約数和(自身を含む): 38568960

約数和(自身を除く): 19602230

約数列:

[1, 2, 5, 10, 17, 31, 34, 59, 61, 62, 85, 118, 122, 155, 170, 295, 305, 310, 527, 590, 610, 1003, 1037, 1054, 1829, 1891, 2006, 2074, 2635, 3599, 3658, 3782, 5015, 5185, 5270, 7198, 9145, 9455, 10030, 10370, 17995, 18290, 18910, 31093, 32147, 35990, 61183, 62186, 64294, 111569, 122366, 155465, 160735, 223138, 305915, 310930, 321470, 557845, 611830, 1115690, 1896673, 3793346, 9483365, 18966730]

約数ペア:

[(1, 18966730), (2, 9483365), (5, 3793346), (10, 1896673), (17, 1115690), (31, 611830), (34, 557845), (59, 321470), (61, 310930), (62, 305915), (85, 223138), (118, 160735), (122, 155465), (155, 122366), (170, 111569), (295, 64294), (305, 62186), (310, 61183), (527, 35990), (590, 32147), (610, 31093), (1003, 18910), (1037, 18290), (1054, 17995), (1829, 10370), (1891, 10030), (2006, 9455), (2074, 9145), (2635, 7198), (3599, 5270), (3658, 5185), (3782, 5015)]