212558220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{168697}}^1$

素因数の和:168719

約数の個数: 72

約数和(自身を含む): 736872864

約数和(自身を除く): 524314644

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 168697, 337394, 506091, 674788, 843485, 1012182, 1180879, 1518273, 1686970, 2024364, 2361758, 2530455, 3036546, 3373940, 3542637, 4723516, 5060910, 5904395, 6073092, 7085274, 7591365, 10121820, 10627911, 11808790, 14170548, 15182730, 17713185, 21255822, 23617580, 30365460, 35426370, 42511644, 53139555, 70852740, 106279110, 212558220]

約数ペア:

[(1, 212558220), (2, 106279110), (3, 70852740), (4, 53139555), (5, 42511644), (6, 35426370), (7, 30365460), (9, 23617580), (10, 21255822), (12, 17713185), (14, 15182730), (15, 14170548), (18, 11808790), (20, 10627911), (21, 10121820), (28, 7591365), (30, 7085274), (35, 6073092), (36, 5904395), (42, 5060910), (45, 4723516), (60, 3542637), (63, 3373940), (70, 3036546), (84, 2530455), (90, 2361758), (105, 2024364), (126, 1686970), (140, 1518273), (180, 1180879), (210, 1012182), (252, 843485), (315, 674788), (420, 506091), (630, 337394), (1260, 168697)]