71618220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1$

素因数の和:564

約数の個数: 144

約数和(自身を含む): 234474240

約数和(自身を除く): 162856020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 43, 45, 57, 60, 76, 86, 90, 95, 114, 129, 171, 172, 180, 190, 215, 228, 258, 285, 342, 380, 387, 430, 487, 516, 570, 645, 684, 774, 817, 855, 860, 974, 1140, 1290, 1461, 1548, 1634, 1710, 1935, 1948, 2435, 2451, 2580, 2922, 3268, 3420, 3870, 4085, 4383, 4870, 4902, 5844, 7305, 7353, 7740, 8170, 8766, 9253, 9740, 9804, 12255, 14610, 14706, 16340, 17532, 18506, 20941, 21915, 24510, 27759, 29220, 29412, 36765, 37012, 41882, 43830, 46265, 49020, 55518, 62823, 73530, 83277, 83764, 87660, 92530, 104705, 111036, 125646, 138795, 147060, 166554, 185060, 188469, 209410, 251292, 277590, 314115, 333108, 376938, 397879, 416385, 418820, 555180, 628230, 753876, 795758, 832770, 942345, 1193637, 1256460, 1591516, 1665540, 1884690, 1989395, 2387274, 3580911, 3769380, 3978790, 4774548, 5968185, 7161822, 7957580, 11936370, 14323644, 17904555, 23872740, 35809110, 71618220]

約数ペア:

[(1, 71618220), (2, 35809110), (3, 23872740), (4, 17904555), (5, 14323644), (6, 11936370), (9, 7957580), (10, 7161822), (12, 5968185), (15, 4774548), (18, 3978790), (19, 3769380), (20, 3580911), (30, 2387274), (36, 1989395), (38, 1884690), (43, 1665540), (45, 1591516), (57, 1256460), (60, 1193637), (76, 942345), (86, 832770), (90, 795758), (95, 753876), (114, 628230), (129, 555180), (171, 418820), (172, 416385), (180, 397879), (190, 376938), (215, 333108), (228, 314115), (258, 277590), (285, 251292), (342, 209410), (380, 188469), (387, 185060), (430, 166554), (487, 147060), (516, 138795), (570, 125646), (645, 111036), (684, 104705), (774, 92530), (817, 87660), (855, 83764), (860, 83277), (974, 73530), (1140, 62823), (1290, 55518), (1461, 49020), (1548, 46265), (1634, 43830), (1710, 41882), (1935, 37012), (1948, 36765), (2435, 29412), (2451, 29220), (2580, 27759), (2922, 24510), (3268, 21915), (3420, 20941), (3870, 18506), (4085, 17532), (4383, 16340), (4870, 14706), (4902, 14610), (5844, 12255), (7305, 9804), (7353, 9740), (7740, 9253), (8170, 8766)]