71712460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{653}}^1$

素因数の和:715

約数の個数: 72

約数和(自身を含む): 168653520

約数和(自身を除く): 96941060

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 289, 323, 340, 380, 578, 646, 653, 1156, 1292, 1306, 1445, 1615, 2612, 2890, 3230, 3265, 5491, 5780, 6460, 6530, 10982, 11101, 12407, 13060, 21964, 22202, 24814, 27455, 44404, 49628, 54910, 55505, 62035, 109820, 111010, 124070, 188717, 210919, 222020, 248140, 377434, 421838, 754868, 843676, 943585, 1054595, 1887170, 2109190, 3585623, 3774340, 4218380, 7171246, 14342492, 17928115, 35856230, 71712460]

約数ペア:

[(1, 71712460), (2, 35856230), (4, 17928115), (5, 14342492), (10, 7171246), (17, 4218380), (19, 3774340), (20, 3585623), (34, 2109190), (38, 1887170), (68, 1054595), (76, 943585), (85, 843676), (95, 754868), (170, 421838), (190, 377434), (289, 248140), (323, 222020), (340, 210919), (380, 188717), (578, 124070), (646, 111010), (653, 109820), (1156, 62035), (1292, 55505), (1306, 54910), (1445, 49628), (1615, 44404), (2612, 27455), (2890, 24814), (3230, 22202), (3265, 21964), (5491, 13060), (5780, 12407), (6460, 11101), (6530, 10982)]