7939100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:255

約数の個数: 72

約数和(自身を含む): 19248768

約数和(自身を除く): 11309668

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 124, 130, 155, 197, 260, 310, 325, 394, 403, 620, 650, 775, 788, 806, 985, 1300, 1550, 1612, 1970, 2015, 2561, 3100, 3940, 4030, 4925, 5122, 6107, 8060, 9850, 10075, 10244, 12214, 12805, 19700, 20150, 24428, 25610, 30535, 40300, 51220, 61070, 64025, 79391, 122140, 128050, 152675, 158782, 256100, 305350, 317564, 396955, 610700, 793910, 1587820, 1984775, 3969550, 7939100]

約数ペア:

[(1, 7939100), (2, 3969550), (4, 1984775), (5, 1587820), (10, 793910), (13, 610700), (20, 396955), (25, 317564), (26, 305350), (31, 256100), (50, 158782), (52, 152675), (62, 128050), (65, 122140), (100, 79391), (124, 64025), (130, 61070), (155, 51220), (197, 40300), (260, 30535), (310, 25610), (325, 24428), (394, 20150), (403, 19700), (620, 12805), (650, 12214), (775, 10244), (788, 10075), (806, 9850), (985, 8060), (1300, 6107), (1550, 5122), (1612, 4925), (1970, 4030), (2015, 3940), (2561, 3100)]