728992680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{1663}}^1$

素因数の和:1971

約数の個数: 128

約数和(自身を含む): 2365009920

約数和(自身を除く): 1636017240

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, 281, 312, 390, 520, 562, 780, 843, 1124, 1405, 1560, 1663, 1686, 2248, 2810, 3326, 3372, 3653, 4215, 4989, 5620, 6652, 6744, 7306, 8315, 8430, 9978, 10959, 11240, 13304, 14612, 16630, 16860, 18265, 19956, 21619, 21918, 24945, 29224, 33260, 33720, 36530, 39912, 43238, 43836, 49890, 54795, 64857, 66520, 73060, 86476, 87672, 99780, 108095, 109590, 129714, 146120, 172952, 199560, 216190, 219180, 259428, 324285, 432380, 438360, 467303, 518856, 648570, 864760, 934606, 1297140, 1401909, 1869212, 2336515, 2594280, 2803818, 3738424, 4673030, 5607636, 6074939, 7009545, 9346060, 11215272, 12149878, 14019090, 18224817, 18692120, 24299756, 28038180, 30374695, 36449634, 48599512, 56076360, 60749390, 72899268, 91124085, 121498780, 145798536, 182248170, 242997560, 364496340, 728992680]

約数ペア:

[(1, 728992680), (2, 364496340), (3, 242997560), (4, 182248170), (5, 145798536), (6, 121498780), (8, 91124085), (10, 72899268), (12, 60749390), (13, 56076360), (15, 48599512), (20, 36449634), (24, 30374695), (26, 28038180), (30, 24299756), (39, 18692120), (40, 18224817), (52, 14019090), (60, 12149878), (65, 11215272), (78, 9346060), (104, 7009545), (120, 6074939), (130, 5607636), (156, 4673030), (195, 3738424), (260, 2803818), (281, 2594280), (312, 2336515), (390, 1869212), (520, 1401909), (562, 1297140), (780, 934606), (843, 864760), (1124, 648570), (1405, 518856), (1560, 467303), (1663, 438360), (1686, 432380), (2248, 324285), (2810, 259428), (3326, 219180), (3372, 216190), (3653, 199560), (4215, 172952), (4989, 146120), (5620, 129714), (6652, 109590), (6744, 108095), (7306, 99780), (8315, 87672), (8430, 86476), (9978, 73060), (10959, 66520), (11240, 64857), (13304, 54795), (14612, 49890), (16630, 43836), (16860, 43238), (18265, 39912), (19956, 36530), (21619, 33720), (21918, 33260), (24945, 29224)]