16240280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1871}}^1$

素因数の和:1920

約数の個数: 64

約数和(自身を含む): 43130880

約数和(自身を除く): 26890600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 1871, 2170, 3742, 4340, 7484, 8680, 9355, 13097, 14968, 18710, 26194, 37420, 52388, 58001, 65485, 74840, 104776, 116002, 130970, 232004, 261940, 290005, 406007, 464008, 523880, 580010, 812014, 1160020, 1624028, 2030035, 2320040, 3248056, 4060070, 8120140, 16240280]

約数ペア:

[(1, 16240280), (2, 8120140), (4, 4060070), (5, 3248056), (7, 2320040), (8, 2030035), (10, 1624028), (14, 1160020), (20, 812014), (28, 580010), (31, 523880), (35, 464008), (40, 406007), (56, 290005), (62, 261940), (70, 232004), (124, 130970), (140, 116002), (155, 104776), (217, 74840), (248, 65485), (280, 58001), (310, 52388), (434, 37420), (620, 26194), (868, 18710), (1085, 14968), (1240, 13097), (1736, 9355), (1871, 8680), (2170, 7484), (3742, 4340)]