256392240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2221}}^1$

素因数の和:2287

約数の個数: 160

約数和(自身を含む): 879485376

約数和(自身を除く): 623093136

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 37, 39, 40, 48, 52, 60, 65, 74, 78, 80, 104, 111, 120, 130, 148, 156, 185, 195, 208, 222, 240, 260, 296, 312, 370, 390, 444, 481, 520, 555, 592, 624, 740, 780, 888, 962, 1040, 1110, 1443, 1480, 1560, 1776, 1924, 2220, 2221, 2405, 2886, 2960, 3120, 3848, 4440, 4442, 4810, 5772, 6663, 7215, 7696, 8880, 8884, 9620, 11105, 11544, 13326, 14430, 17768, 19240, 22210, 23088, 26652, 28860, 28873, 33315, 35536, 38480, 44420, 53304, 57720, 57746, 66630, 82177, 86619, 88840, 106608, 115440, 115492, 133260, 144365, 164354, 173238, 177680, 230984, 246531, 266520, 288730, 328708, 346476, 410885, 433095, 461968, 493062, 533040, 577460, 657416, 692952, 821770, 866190, 986124, 1068301, 1154920, 1232655, 1314832, 1385904, 1643540, 1732380, 1972248, 2136602, 2309840, 2465310, 3204903, 3287080, 3464760, 3944496, 4273204, 4930620, 5341505, 6409806, 6574160, 6929520, 8546408, 9861240, 10683010, 12819612, 16024515, 17092816, 19722480, 21366020, 25639224, 32049030, 42732040, 51278448, 64098060, 85464080, 128196120, 256392240]

約数ペア:

[(1, 256392240), (2, 128196120), (3, 85464080), (4, 64098060), (5, 51278448), (6, 42732040), (8, 32049030), (10, 25639224), (12, 21366020), (13, 19722480), (15, 17092816), (16, 16024515), (20, 12819612), (24, 10683010), (26, 9861240), (30, 8546408), (37, 6929520), (39, 6574160), (40, 6409806), (48, 5341505), (52, 4930620), (60, 4273204), (65, 3944496), (74, 3464760), (78, 3287080), (80, 3204903), (104, 2465310), (111, 2309840), (120, 2136602), (130, 1972248), (148, 1732380), (156, 1643540), (185, 1385904), (195, 1314832), (208, 1232655), (222, 1154920), (240, 1068301), (260, 986124), (296, 866190), (312, 821770), (370, 692952), (390, 657416), (444, 577460), (481, 533040), (520, 493062), (555, 461968), (592, 433095), (624, 410885), (740, 346476), (780, 328708), (888, 288730), (962, 266520), (1040, 246531), (1110, 230984), (1443, 177680), (1480, 173238), (1560, 164354), (1776, 144365), (1924, 133260), (2220, 115492), (2221, 115440), (2405, 106608), (2886, 88840), (2960, 86619), (3120, 82177), (3848, 66630), (4440, 57746), (4442, 57720), (4810, 53304), (5772, 44420), (6663, 38480), (7215, 35536), (7696, 33315), (8880, 28873), (8884, 28860), (9620, 26652), (11105, 23088), (11544, 22210), (13326, 19240), (14430, 17768)]