28351960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7789}}^1$

素因数の和:7820

約数の個数: 64

約数和(自身を含む): 78523200

約数和(自身を除く): 50171240

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 7789, 15578, 31156, 38945, 54523, 62312, 77890, 101257, 109046, 155780, 202514, 218092, 272615, 311560, 405028, 436184, 506285, 545230, 708799, 810056, 1012570, 1090460, 1417598, 2025140, 2180920, 2835196, 3543995, 4050280, 5670392, 7087990, 14175980, 28351960]

約数ペア:

[(1, 28351960), (2, 14175980), (4, 7087990), (5, 5670392), (7, 4050280), (8, 3543995), (10, 2835196), (13, 2180920), (14, 2025140), (20, 1417598), (26, 1090460), (28, 1012570), (35, 810056), (40, 708799), (52, 545230), (56, 506285), (65, 436184), (70, 405028), (91, 311560), (104, 272615), (130, 218092), (140, 202514), (182, 155780), (260, 109046), (280, 101257), (364, 77890), (455, 62312), (520, 54523), (728, 38945), (910, 31156), (1820, 15578), (3640, 7789)]