890991760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{3923}}^1$

素因数の和:4120

約数の個数: 80

約数和(自身を含む): 2207108736

約数和(自身を除く): 1316116976

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 167, 170, 272, 334, 340, 668, 680, 835, 1336, 1360, 1670, 2672, 2839, 3340, 3923, 5678, 6680, 7846, 11356, 13360, 14195, 15692, 19615, 22712, 28390, 31384, 39230, 45424, 56780, 62768, 66691, 78460, 113560, 133382, 156920, 227120, 266764, 313840, 333455, 533528, 655141, 666910, 1067056, 1310282, 1333820, 2620564, 2667640, 3275705, 5241128, 5335280, 6551410, 10482256, 11137397, 13102820, 22274794, 26205640, 44549588, 52411280, 55686985, 89099176, 111373970, 178198352, 222747940, 445495880, 890991760]

約数ペア:

[(1, 890991760), (2, 445495880), (4, 222747940), (5, 178198352), (8, 111373970), (10, 89099176), (16, 55686985), (17, 52411280), (20, 44549588), (34, 26205640), (40, 22274794), (68, 13102820), (80, 11137397), (85, 10482256), (136, 6551410), (167, 5335280), (170, 5241128), (272, 3275705), (334, 2667640), (340, 2620564), (668, 1333820), (680, 1310282), (835, 1067056), (1336, 666910), (1360, 655141), (1670, 533528), (2672, 333455), (2839, 313840), (3340, 266764), (3923, 227120), (5678, 156920), (6680, 133382), (7846, 113560), (11356, 78460), (13360, 66691), (14195, 62768), (15692, 56780), (19615, 45424), (22712, 39230), (28390, 31384)]