19839680

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{521}}^1$

素因数の和:562

約数の個数: 112

約数和(自身を含む): 57278016

約数和(自身を除く): 37438336

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 56, 64, 68, 70, 80, 85, 112, 119, 136, 140, 160, 170, 224, 238, 272, 280, 320, 340, 448, 476, 521, 544, 560, 595, 680, 952, 1042, 1088, 1120, 1190, 1360, 1904, 2084, 2240, 2380, 2605, 2720, 3647, 3808, 4168, 4760, 5210, 5440, 7294, 7616, 8336, 8857, 9520, 10420, 14588, 16672, 17714, 18235, 19040, 20840, 29176, 33344, 35428, 36470, 38080, 41680, 44285, 58352, 61999, 70856, 72940, 83360, 88570, 116704, 123998, 141712, 145880, 166720, 177140, 233408, 247996, 283424, 291760, 309995, 354280, 495992, 566848, 583520, 619990, 708560, 991984, 1167040, 1239980, 1417120, 1983968, 2479960, 2834240, 3967936, 4959920, 9919840, 19839680]

約数ペア:

[(1, 19839680), (2, 9919840), (4, 4959920), (5, 3967936), (7, 2834240), (8, 2479960), (10, 1983968), (14, 1417120), (16, 1239980), (17, 1167040), (20, 991984), (28, 708560), (32, 619990), (34, 583520), (35, 566848), (40, 495992), (56, 354280), (64, 309995), (68, 291760), (70, 283424), (80, 247996), (85, 233408), (112, 177140), (119, 166720), (136, 145880), (140, 141712), (160, 123998), (170, 116704), (224, 88570), (238, 83360), (272, 72940), (280, 70856), (320, 61999), (340, 58352), (448, 44285), (476, 41680), (521, 38080), (544, 36470), (560, 35428), (595, 33344), (680, 29176), (952, 20840), (1042, 19040), (1088, 18235), (1120, 17714), (1190, 16672), (1360, 14588), (1904, 10420), (2084, 9520), (2240, 8857), (2380, 8336), (2605, 7616), (2720, 7294), (3647, 5440), (3808, 5210), (4168, 4760)]