78004640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{271}}^1$

素因数の和:550

約数の個数: 96

約数和(自身を含む): 212212224

約数和(自身を除く): 134207584

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 257, 271, 280, 514, 542, 560, 1028, 1084, 1120, 1285, 1355, 1799, 1897, 2056, 2168, 2570, 2710, 3598, 3794, 4112, 4336, 5140, 5420, 7196, 7588, 8224, 8672, 8995, 9485, 10280, 10840, 14392, 15176, 17990, 18970, 20560, 21680, 28784, 30352, 35980, 37940, 41120, 43360, 57568, 60704, 69647, 71960, 75880, 139294, 143920, 151760, 278588, 287840, 303520, 348235, 487529, 557176, 696470, 975058, 1114352, 1392940, 1950116, 2228704, 2437645, 2785880, 3900232, 4875290, 5571760, 7800464, 9750580, 11143520, 15600928, 19501160, 39002320, 78004640]

約数ペア:

[(1, 78004640), (2, 39002320), (4, 19501160), (5, 15600928), (7, 11143520), (8, 9750580), (10, 7800464), (14, 5571760), (16, 4875290), (20, 3900232), (28, 2785880), (32, 2437645), (35, 2228704), (40, 1950116), (56, 1392940), (70, 1114352), (80, 975058), (112, 696470), (140, 557176), (160, 487529), (224, 348235), (257, 303520), (271, 287840), (280, 278588), (514, 151760), (542, 143920), (560, 139294), (1028, 75880), (1084, 71960), (1120, 69647), (1285, 60704), (1355, 57568), (1799, 43360), (1897, 41120), (2056, 37940), (2168, 35980), (2570, 30352), (2710, 28784), (3598, 21680), (3794, 20560), (4112, 18970), (4336, 17990), (5140, 15176), (5420, 14392), (7196, 10840), (7588, 10280), (8224, 9485), (8672, 8995)]