79757420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{653}}^1$

素因数の和:890

約数の個数: 48

約数和(自身を含む): 174037248

約数和(自身を除く): 94279828

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 197, 310, 394, 620, 653, 788, 985, 1306, 1970, 2612, 3265, 3940, 6107, 6530, 12214, 13060, 20243, 24428, 30535, 40486, 61070, 80972, 101215, 122140, 128641, 202430, 257282, 404860, 514564, 643205, 1286410, 2572820, 3987871, 7975742, 15951484, 19939355, 39878710, 79757420]

約数ペア:

[(1, 79757420), (2, 39878710), (4, 19939355), (5, 15951484), (10, 7975742), (20, 3987871), (31, 2572820), (62, 1286410), (124, 643205), (155, 514564), (197, 404860), (310, 257282), (394, 202430), (620, 128641), (653, 122140), (788, 101215), (985, 80972), (1306, 61070), (1970, 40486), (2612, 30535), (3265, 24428), (3940, 20243), (6107, 13060), (6530, 12214)]