28206480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{557}}^1$

素因数の和:784

約数の個数: 80

約数和(自身を含む): 88012224

約数和(自身を除く): 59805744

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 211, 240, 422, 557, 633, 844, 1055, 1114, 1266, 1671, 1688, 2110, 2228, 2532, 2785, 3165, 3342, 3376, 4220, 4456, 5064, 5570, 6330, 6684, 8355, 8440, 8912, 10128, 11140, 12660, 13368, 16710, 16880, 22280, 25320, 26736, 33420, 44560, 50640, 66840, 117527, 133680, 235054, 352581, 470108, 587635, 705162, 940216, 1175270, 1410324, 1762905, 1880432, 2350540, 2820648, 3525810, 4701080, 5641296, 7051620, 9402160, 14103240, 28206480]

約数ペア:

[(1, 28206480), (2, 14103240), (3, 9402160), (4, 7051620), (5, 5641296), (6, 4701080), (8, 3525810), (10, 2820648), (12, 2350540), (15, 1880432), (16, 1762905), (20, 1410324), (24, 1175270), (30, 940216), (40, 705162), (48, 587635), (60, 470108), (80, 352581), (120, 235054), (211, 133680), (240, 117527), (422, 66840), (557, 50640), (633, 44560), (844, 33420), (1055, 26736), (1114, 25320), (1266, 22280), (1671, 16880), (1688, 16710), (2110, 13368), (2228, 12660), (2532, 11140), (2785, 10128), (3165, 8912), (3342, 8440), (3376, 8355), (4220, 6684), (4456, 6330), (5064, 5570)]