28480920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18257}}^1$

素因数の和:18284

約数の個数: 64

約数和(自身を含む): 92020320

約数和(自身を除く): 63539400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 18257, 36514, 54771, 73028, 91285, 109542, 146056, 182570, 219084, 237341, 273855, 365140, 438168, 474682, 547710, 712023, 730280, 949364, 1095420, 1186705, 1424046, 1898728, 2190840, 2373410, 2848092, 3560115, 4746820, 5696184, 7120230, 9493640, 14240460, 28480920]

約数ペア:

[(1, 28480920), (2, 14240460), (3, 9493640), (4, 7120230), (5, 5696184), (6, 4746820), (8, 3560115), (10, 2848092), (12, 2373410), (13, 2190840), (15, 1898728), (20, 1424046), (24, 1186705), (26, 1095420), (30, 949364), (39, 730280), (40, 712023), (52, 547710), (60, 474682), (65, 438168), (78, 365140), (104, 273855), (120, 237341), (130, 219084), (156, 182570), (195, 146056), (260, 109542), (312, 91285), (390, 73028), (520, 54771), (780, 36514), (1560, 18257)]