12980940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{997}}^1$

素因数の和:1047

約数の個数: 96

約数和(自身を含む): 42921984

約数和(自身を除く): 29941044

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 620, 651, 868, 930, 997, 1085, 1302, 1860, 1994, 2170, 2604, 2991, 3255, 3988, 4340, 4985, 5982, 6510, 6979, 9970, 11964, 13020, 13958, 14955, 19940, 20937, 27916, 29910, 30907, 34895, 41874, 59820, 61814, 69790, 83748, 92721, 104685, 123628, 139580, 154535, 185442, 209370, 216349, 309070, 370884, 418740, 432698, 463605, 618140, 649047, 865396, 927210, 1081745, 1298094, 1854420, 2163490, 2596188, 3245235, 4326980, 6490470, 12980940]

約数ペア:

[(1, 12980940), (2, 6490470), (3, 4326980), (4, 3245235), (5, 2596188), (6, 2163490), (7, 1854420), (10, 1298094), (12, 1081745), (14, 927210), (15, 865396), (20, 649047), (21, 618140), (28, 463605), (30, 432698), (31, 418740), (35, 370884), (42, 309070), (60, 216349), (62, 209370), (70, 185442), (84, 154535), (93, 139580), (105, 123628), (124, 104685), (140, 92721), (155, 83748), (186, 69790), (210, 61814), (217, 59820), (310, 41874), (372, 34895), (420, 30907), (434, 29910), (465, 27916), (620, 20937), (651, 19940), (868, 14955), (930, 13958), (997, 13020), (1085, 11964), (1302, 9970), (1860, 6979), (1994, 6510), (2170, 5982), (2604, 4985), (2991, 4340), (3255, 3988)]