28769860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{947}}^1$

素因数の和:1001

約数の個数: 72

約数和(自身を含む): 72624384

約数和(自身を除く): 43854524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 155, 196, 217, 245, 310, 434, 490, 620, 868, 947, 980, 1085, 1519, 1894, 2170, 3038, 3788, 4340, 4735, 6076, 6629, 7595, 9470, 13258, 15190, 18940, 26516, 29357, 30380, 33145, 46403, 58714, 66290, 92806, 117428, 132580, 146785, 185612, 205499, 232015, 293570, 410998, 464030, 587140, 821996, 928060, 1027495, 1438493, 2054990, 2876986, 4109980, 5753972, 7192465, 14384930, 28769860]

約数ペア:

[(1, 28769860), (2, 14384930), (4, 7192465), (5, 5753972), (7, 4109980), (10, 2876986), (14, 2054990), (20, 1438493), (28, 1027495), (31, 928060), (35, 821996), (49, 587140), (62, 464030), (70, 410998), (98, 293570), (124, 232015), (140, 205499), (155, 185612), (196, 146785), (217, 132580), (245, 117428), (310, 92806), (434, 66290), (490, 58714), (620, 46403), (868, 33145), (947, 30380), (980, 29357), (1085, 26516), (1519, 18940), (1894, 15190), (2170, 13258), (3038, 9470), (3788, 7595), (4340, 6629), (4735, 6076)]