28178280

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1$

素因数の和:262

約数の個数: 192

約数和(自身を含む): 102735360

約数和(自身を除く): 74557080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 81, 90, 104, 108, 117, 120, 130, 135, 156, 162, 180, 195, 216, 223, 234, 243, 260, 270, 312, 324, 351, 360, 390, 405, 446, 468, 486, 520, 540, 585, 648, 669, 702, 780, 810, 892, 936, 972, 1053, 1080, 1115, 1170, 1215, 1338, 1404, 1560, 1620, 1755, 1784, 1944, 2007, 2106, 2230, 2340, 2430, 2676, 2808, 2899, 3159, 3240, 3345, 3510, 4014, 4212, 4460, 4680, 4860, 5265, 5352, 5798, 6021, 6318, 6690, 7020, 8028, 8424, 8697, 8920, 9720, 10035, 10530, 11596, 12042, 12636, 13380, 14040, 14495, 15795, 16056, 17394, 18063, 20070, 21060, 23192, 24084, 25272, 26091, 26760, 28990, 30105, 31590, 34788, 36126, 40140, 42120, 43485, 48168, 52182, 54189, 57980, 60210, 63180, 69576, 72252, 78273, 80280, 86970, 90315, 104364, 108378, 115960, 120420, 126360, 130455, 144504, 156546, 173940, 180630, 208728, 216756, 234819, 240840, 260910, 270945, 313092, 347880, 361260, 391365, 433512, 469638, 521820, 541890, 626184, 704457, 722520, 782730, 939276, 1043640, 1083780, 1174095, 1408914, 1565460, 1878552, 2167560, 2348190, 2817828, 3130920, 3522285, 4696380, 5635656, 7044570, 9392760, 14089140, 28178280]

約数ペア:

[(1, 28178280), (2, 14089140), (3, 9392760), (4, 7044570), (5, 5635656), (6, 4696380), (8, 3522285), (9, 3130920), (10, 2817828), (12, 2348190), (13, 2167560), (15, 1878552), (18, 1565460), (20, 1408914), (24, 1174095), (26, 1083780), (27, 1043640), (30, 939276), (36, 782730), (39, 722520), (40, 704457), (45, 626184), (52, 541890), (54, 521820), (60, 469638), (65, 433512), (72, 391365), (78, 361260), (81, 347880), (90, 313092), (104, 270945), (108, 260910), (117, 240840), (120, 234819), (130, 216756), (135, 208728), (156, 180630), (162, 173940), (180, 156546), (195, 144504), (216, 130455), (223, 126360), (234, 120420), (243, 115960), (260, 108378), (270, 104364), (312, 90315), (324, 86970), (351, 80280), (360, 78273), (390, 72252), (405, 69576), (446, 63180), (468, 60210), (486, 57980), (520, 54189), (540, 52182), (585, 48168), (648, 43485), (669, 42120), (702, 40140), (780, 36126), (810, 34788), (892, 31590), (936, 30105), (972, 28990), (1053, 26760), (1080, 26091), (1115, 25272), (1170, 24084), (1215, 23192), (1338, 21060), (1404, 20070), (1560, 18063), (1620, 17394), (1755, 16056), (1784, 15795), (1944, 14495), (2007, 14040), (2106, 13380), (2230, 12636), (2340, 12042), (2430, 11596), (2676, 10530), (2808, 10035), (2899, 9720), (3159, 8920), (3240, 8697), (3345, 8424), (3510, 8028), (4014, 7020), (4212, 6690), (4460, 6318), (4680, 6021), (4860, 5798), (5265, 5352)]