72157520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{3121}}^1$

素因数の和:3168

約数の個数: 60

約数和(自身を含む): 178272444

約数和(自身を除く): 106114924

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 289, 340, 578, 680, 1156, 1360, 1445, 2312, 2890, 3121, 4624, 5780, 6242, 11560, 12484, 15605, 23120, 24968, 31210, 49936, 53057, 62420, 106114, 124840, 212228, 249680, 265285, 424456, 530570, 848912, 901969, 1061140, 1803938, 2122280, 3607876, 4244560, 4509845, 7215752, 9019690, 14431504, 18039380, 36078760, 72157520]

約数ペア:

[(1, 72157520), (2, 36078760), (4, 18039380), (5, 14431504), (8, 9019690), (10, 7215752), (16, 4509845), (17, 4244560), (20, 3607876), (34, 2122280), (40, 1803938), (68, 1061140), (80, 901969), (85, 848912), (136, 530570), (170, 424456), (272, 265285), (289, 249680), (340, 212228), (578, 124840), (680, 106114), (1156, 62420), (1360, 53057), (1445, 49936), (2312, 31210), (2890, 24968), (3121, 23120), (4624, 15605), (5780, 12484), (6242, 11560)]