28420490

素因数分解:

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

素因数の和:1923

約数の個数: 48

約数和(自身を含む): 61461504

約数和(自身を除く): 33041014

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 49, 62, 70, 98, 155, 217, 245, 310, 434, 490, 1085, 1519, 1871, 2170, 3038, 3742, 7595, 9355, 13097, 15190, 18710, 26194, 58001, 65485, 91679, 116002, 130970, 183358, 290005, 406007, 458395, 580010, 812014, 916790, 2030035, 2842049, 4060070, 5684098, 14210245, 28420490]

約数ペア:

[(1, 28420490), (2, 14210245), (5, 5684098), (7, 4060070), (10, 2842049), (14, 2030035), (31, 916790), (35, 812014), (49, 580010), (62, 458395), (70, 406007), (98, 290005), (155, 183358), (217, 130970), (245, 116002), (310, 91679), (434, 65485), (490, 58001), (1085, 26194), (1519, 18710), (1871, 15190), (2170, 13097), (3038, 9355), (3742, 7595)]