18015340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{593}}^1$

素因数の和:647

約数の個数: 72

約数和(自身を含む): 45505152

約数和(自身を除く): 27489812

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, 593, 620, 868, 980, 1085, 1186, 1519, 2170, 2372, 2965, 3038, 4151, 4340, 5930, 6076, 7595, 8302, 11860, 15190, 16604, 18383, 20755, 29057, 30380, 36766, 41510, 58114, 73532, 83020, 91915, 116228, 128681, 145285, 183830, 257362, 290570, 367660, 514724, 581140, 643405, 900767, 1286810, 1801534, 2573620, 3603068, 4503835, 9007670, 18015340]

約数ペア:

[(1, 18015340), (2, 9007670), (4, 4503835), (5, 3603068), (7, 2573620), (10, 1801534), (14, 1286810), (20, 900767), (28, 643405), (31, 581140), (35, 514724), (49, 367660), (62, 290570), (70, 257362), (98, 183830), (124, 145285), (140, 128681), (155, 116228), (196, 91915), (217, 83020), (245, 73532), (310, 58114), (434, 41510), (490, 36766), (593, 30380), (620, 29057), (868, 20755), (980, 18383), (1085, 16604), (1186, 15190), (1519, 11860), (2170, 8302), (2372, 7595), (2965, 6076), (3038, 5930), (4151, 4340)]