28414269940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{325777}}^1$

素因数の和:325889

約数の個数: 72

約数和(自身を含む): 70192127880

約数和(自身を除く): 41777857940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 89, 98, 140, 178, 196, 245, 356, 445, 490, 623, 890, 980, 1246, 1780, 2492, 3115, 4361, 6230, 8722, 12460, 17444, 21805, 43610, 87220, 325777, 651554, 1303108, 1628885, 2280439, 3257770, 4560878, 6515540, 9121756, 11402195, 15963073, 22804390, 28994153, 31926146, 45608780, 57988306, 63852292, 79815365, 115976612, 144970765, 159630730, 202959071, 289941530, 319261460, 405918142, 579883060, 811836284, 1014795355, 1420713497, 2029590710, 2841426994, 4059181420, 5682853988, 7103567485, 14207134970, 28414269940]

約数ペア:

[(1, 28414269940), (2, 14207134970), (4, 7103567485), (5, 5682853988), (7, 4059181420), (10, 2841426994), (14, 2029590710), (20, 1420713497), (28, 1014795355), (35, 811836284), (49, 579883060), (70, 405918142), (89, 319261460), (98, 289941530), (140, 202959071), (178, 159630730), (196, 144970765), (245, 115976612), (356, 79815365), (445, 63852292), (490, 57988306), (623, 45608780), (890, 31926146), (980, 28994153), (1246, 22804390), (1780, 15963073), (2492, 11402195), (3115, 9121756), (4361, 6515540), (6230, 4560878), (8722, 3257770), (12460, 2280439), (17444, 1628885), (21805, 1303108), (43610, 651554), (87220, 325777)]