84399980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{19447}}^1$

素因数の和:19494

約数の個数: 48

約数和(自身を含む): 209104896

約数和(自身を除く): 124704916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 19447, 38894, 77788, 97235, 136129, 194470, 272258, 388940, 544516, 602857, 680645, 1205714, 1361290, 2411428, 2722580, 3014285, 4219999, 6028570, 8439998, 12057140, 16879996, 21099995, 42199990, 84399980]

約数ペア:

[(1, 84399980), (2, 42199990), (4, 21099995), (5, 16879996), (7, 12057140), (10, 8439998), (14, 6028570), (20, 4219999), (28, 3014285), (31, 2722580), (35, 2411428), (62, 1361290), (70, 1205714), (124, 680645), (140, 602857), (155, 544516), (217, 388940), (310, 272258), (434, 194470), (620, 136129), (868, 97235), (1085, 77788), (2170, 38894), (4340, 19447)]