38887940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{929}}^1$

素因数の和:981

約数の個数: 96

約数和(自身を含む): 104993280

約数和(自身を除く): 66105340

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 26, 28, 35, 46, 52, 65, 70, 91, 92, 115, 130, 140, 161, 182, 230, 260, 299, 322, 364, 455, 460, 598, 644, 805, 910, 929, 1196, 1495, 1610, 1820, 1858, 2093, 2990, 3220, 3716, 4186, 4645, 5980, 6503, 8372, 9290, 10465, 12077, 13006, 18580, 20930, 21367, 24154, 26012, 32515, 41860, 42734, 48308, 60385, 65030, 84539, 85468, 106835, 120770, 130060, 149569, 169078, 213670, 241540, 277771, 299138, 338156, 422695, 427340, 555542, 598276, 747845, 845390, 1111084, 1388855, 1495690, 1690780, 1944397, 2777710, 2991380, 3888794, 5555420, 7777588, 9721985, 19443970, 38887940]

約数ペア:

[(1, 38887940), (2, 19443970), (4, 9721985), (5, 7777588), (7, 5555420), (10, 3888794), (13, 2991380), (14, 2777710), (20, 1944397), (23, 1690780), (26, 1495690), (28, 1388855), (35, 1111084), (46, 845390), (52, 747845), (65, 598276), (70, 555542), (91, 427340), (92, 422695), (115, 338156), (130, 299138), (140, 277771), (161, 241540), (182, 213670), (230, 169078), (260, 149569), (299, 130060), (322, 120770), (364, 106835), (455, 85468), (460, 84539), (598, 65030), (644, 60385), (805, 48308), (910, 42734), (929, 41860), (1196, 32515), (1495, 26012), (1610, 24154), (1820, 21367), (1858, 20930), (2093, 18580), (2990, 13006), (3220, 12077), (3716, 10465), (4186, 9290), (4645, 8372), (5980, 6503)]