28357680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:239

約数の個数: 160

約数和(自身を含む): 96868800

約数和(自身を除く): 68511120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 61, 65, 78, 80, 104, 120, 122, 130, 149, 156, 183, 195, 208, 240, 244, 260, 298, 305, 312, 366, 390, 447, 488, 520, 596, 610, 624, 732, 745, 780, 793, 894, 915, 976, 1040, 1192, 1220, 1464, 1490, 1560, 1586, 1788, 1830, 1937, 2235, 2379, 2384, 2440, 2928, 2980, 3120, 3172, 3576, 3660, 3874, 3965, 4470, 4758, 4880, 5811, 5960, 6344, 7152, 7320, 7748, 7930, 8940, 9089, 9516, 9685, 11622, 11895, 11920, 12688, 14640, 15496, 15860, 17880, 18178, 19032, 19370, 23244, 23790, 27267, 29055, 30992, 31720, 35760, 36356, 38064, 38740, 45445, 46488, 47580, 54534, 58110, 63440, 72712, 77480, 90890, 92976, 95160, 109068, 116220, 118157, 136335, 145424, 154960, 181780, 190320, 218136, 232440, 236314, 272670, 354471, 363560, 436272, 464880, 472628, 545340, 590785, 708942, 727120, 945256, 1090680, 1181570, 1417884, 1772355, 1890512, 2181360, 2363140, 2835768, 3544710, 4726280, 5671536, 7089420, 9452560, 14178840, 28357680]

約数ペア:

[(1, 28357680), (2, 14178840), (3, 9452560), (4, 7089420), (5, 5671536), (6, 4726280), (8, 3544710), (10, 2835768), (12, 2363140), (13, 2181360), (15, 1890512), (16, 1772355), (20, 1417884), (24, 1181570), (26, 1090680), (30, 945256), (39, 727120), (40, 708942), (48, 590785), (52, 545340), (60, 472628), (61, 464880), (65, 436272), (78, 363560), (80, 354471), (104, 272670), (120, 236314), (122, 232440), (130, 218136), (149, 190320), (156, 181780), (183, 154960), (195, 145424), (208, 136335), (240, 118157), (244, 116220), (260, 109068), (298, 95160), (305, 92976), (312, 90890), (366, 77480), (390, 72712), (447, 63440), (488, 58110), (520, 54534), (596, 47580), (610, 46488), (624, 45445), (732, 38740), (745, 38064), (780, 36356), (793, 35760), (894, 31720), (915, 30992), (976, 29055), (1040, 27267), (1192, 23790), (1220, 23244), (1464, 19370), (1490, 19032), (1560, 18178), (1586, 17880), (1788, 15860), (1830, 15496), (1937, 14640), (2235, 12688), (2379, 11920), (2384, 11895), (2440, 11622), (2928, 9685), (2980, 9516), (3120, 9089), (3172, 8940), (3576, 7930), (3660, 7748), (3874, 7320), (3965, 7152), (4470, 6344), (4758, 5960), (4880, 5811)]