78869420

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{11497}}^1$

素因数の和:11527

約数の個数: 48

約数和(自身を含む): 193166400

約数和(自身を除く): 114296980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 11497, 22994, 45988, 57485, 80479, 114970, 160958, 229940, 321916, 402395, 563353, 804790, 1126706, 1609580, 2253412, 2816765, 3943471, 5633530, 7886942, 11267060, 15773884, 19717355, 39434710, 78869420]

約数ペア:

[(1, 78869420), (2, 39434710), (4, 19717355), (5, 15773884), (7, 11267060), (10, 7886942), (14, 5633530), (20, 3943471), (28, 2816765), (35, 2253412), (49, 1609580), (70, 1126706), (98, 804790), (140, 563353), (196, 402395), (245, 321916), (343, 229940), (490, 160958), (686, 114970), (980, 80479), (1372, 57485), (1715, 45988), (3430, 22994), (6860, 11497)]