78075760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1303}}^1$

素因数の和:1430

約数の個数: 80

約数和(自身を含む): 209558016

約数和(自身を除く): 131482256

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 107, 112, 140, 214, 280, 428, 535, 560, 749, 856, 1070, 1303, 1498, 1712, 2140, 2606, 2996, 3745, 4280, 5212, 5992, 6515, 7490, 8560, 9121, 10424, 11984, 13030, 14980, 18242, 20848, 26060, 29960, 36484, 45605, 52120, 59920, 72968, 91210, 104240, 139421, 145936, 182420, 278842, 364840, 557684, 697105, 729680, 975947, 1115368, 1394210, 1951894, 2230736, 2788420, 3903788, 4879735, 5576840, 7807576, 9759470, 11153680, 15615152, 19518940, 39037880, 78075760]

約数ペア:

[(1, 78075760), (2, 39037880), (4, 19518940), (5, 15615152), (7, 11153680), (8, 9759470), (10, 7807576), (14, 5576840), (16, 4879735), (20, 3903788), (28, 2788420), (35, 2230736), (40, 1951894), (56, 1394210), (70, 1115368), (80, 975947), (107, 729680), (112, 697105), (140, 557684), (214, 364840), (280, 278842), (428, 182420), (535, 145936), (560, 139421), (749, 104240), (856, 91210), (1070, 72968), (1303, 59920), (1498, 52120), (1712, 45605), (2140, 36484), (2606, 29960), (2996, 26060), (3745, 20848), (4280, 18242), (5212, 14980), (5992, 13030), (6515, 11984), (7490, 10424), (8560, 9121)]