19986075680

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{359}}^1\times {\mathrm{18313}}^1$

素因数の和:18706

約数の個数: 96

約数和(自身を含む): 49843382400

約数和(自身を除く): 29857306720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 359, 380, 608, 718, 760, 1436, 1520, 1795, 2872, 3040, 3590, 5744, 6821, 7180, 11488, 13642, 14360, 18313, 27284, 28720, 34105, 36626, 54568, 57440, 68210, 73252, 91565, 109136, 136420, 146504, 183130, 218272, 272840, 293008, 347947, 366260, 545680, 586016, 695894, 732520, 1091360, 1391788, 1465040, 1739735, 2783576, 2930080, 3479470, 5567152, 6574367, 6958940, 11134304, 13148734, 13917880, 26297468, 27835760, 32871835, 52594936, 55671520, 65743670, 105189872, 124912973, 131487340, 210379744, 249825946, 262974680, 499651892, 525949360, 624564865, 999303784, 1051898720, 1249129730, 1998607568, 2498259460, 3997215136, 4996518920, 9993037840, 19986075680]

約数ペア:

[(1, 19986075680), (2, 9993037840), (4, 4996518920), (5, 3997215136), (8, 2498259460), (10, 1998607568), (16, 1249129730), (19, 1051898720), (20, 999303784), (32, 624564865), (38, 525949360), (40, 499651892), (76, 262974680), (80, 249825946), (95, 210379744), (152, 131487340), (160, 124912973), (190, 105189872), (304, 65743670), (359, 55671520), (380, 52594936), (608, 32871835), (718, 27835760), (760, 26297468), (1436, 13917880), (1520, 13148734), (1795, 11134304), (2872, 6958940), (3040, 6574367), (3590, 5567152), (5744, 3479470), (6821, 2930080), (7180, 2783576), (11488, 1739735), (13642, 1465040), (14360, 1391788), (18313, 1091360), (27284, 732520), (28720, 695894), (34105, 586016), (36626, 545680), (54568, 366260), (57440, 347947), (68210, 293008), (73252, 272840), (91565, 218272), (109136, 183130), (136420, 146504)]