90678640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{353}}^1$

素因数の和:411

約数の個数: 120

約数和(自身を含む): 240989040

約数和(自身を除く): 150310400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 169, 190, 208, 247, 260, 304, 338, 353, 380, 494, 520, 676, 706, 760, 845, 988, 1040, 1235, 1352, 1412, 1520, 1690, 1765, 1976, 2470, 2704, 2824, 3211, 3380, 3530, 3952, 4589, 4940, 5648, 6422, 6707, 6760, 7060, 9178, 9880, 12844, 13414, 13520, 14120, 16055, 18356, 19760, 22945, 25688, 26828, 28240, 32110, 33535, 36712, 45890, 51376, 53656, 59657, 64220, 67070, 73424, 87191, 91780, 107312, 119314, 128440, 134140, 174382, 183560, 238628, 256880, 268280, 298285, 348764, 367120, 435955, 477256, 536560, 596570, 697528, 871910, 954512, 1133483, 1193140, 1395056, 1743820, 2266966, 2386280, 3487640, 4533932, 4772560, 5667415, 6975280, 9067864, 11334830, 18135728, 22669660, 45339320, 90678640]

約数ペア:

[(1, 90678640), (2, 45339320), (4, 22669660), (5, 18135728), (8, 11334830), (10, 9067864), (13, 6975280), (16, 5667415), (19, 4772560), (20, 4533932), (26, 3487640), (38, 2386280), (40, 2266966), (52, 1743820), (65, 1395056), (76, 1193140), (80, 1133483), (95, 954512), (104, 871910), (130, 697528), (152, 596570), (169, 536560), (190, 477256), (208, 435955), (247, 367120), (260, 348764), (304, 298285), (338, 268280), (353, 256880), (380, 238628), (494, 183560), (520, 174382), (676, 134140), (706, 128440), (760, 119314), (845, 107312), (988, 91780), (1040, 87191), (1235, 73424), (1352, 67070), (1412, 64220), (1520, 59657), (1690, 53656), (1765, 51376), (1976, 45890), (2470, 36712), (2704, 33535), (2824, 32110), (3211, 28240), (3380, 26828), (3530, 25688), (3952, 22945), (4589, 19760), (4940, 18356), (5648, 16055), (6422, 14120), (6707, 13520), (6760, 13414), (7060, 12844), (9178, 9880)]