259467520

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{503}}^1$

素因数の和:568

約数の個数: 144

約数和(自身を含む): 692278272

約数和(自身を除く): 432810752

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 256, 260, 310, 320, 403, 416, 496, 503, 520, 620, 640, 806, 832, 992, 1006, 1040, 1240, 1280, 1612, 1664, 1984, 2012, 2015, 2080, 2480, 2515, 3224, 3328, 3968, 4024, 4030, 4160, 4960, 5030, 6448, 6539, 7936, 8048, 8060, 8320, 9920, 10060, 12896, 13078, 15593, 16096, 16120, 16640, 19840, 20120, 25792, 26156, 31186, 32192, 32240, 32695, 39680, 40240, 51584, 52312, 62372, 64384, 64480, 65390, 77965, 80480, 103168, 104624, 124744, 128768, 128960, 130780, 155930, 160960, 202709, 209248, 249488, 257920, 261560, 311860, 321920, 405418, 418496, 498976, 515840, 523120, 623720, 643840, 810836, 836992, 997952, 1013545, 1046240, 1247440, 1621672, 1673984, 1995904, 2027090, 2092480, 2494880, 3243344, 3991808, 4054180, 4184960, 4989760, 6486688, 8108360, 8369920, 9979520, 12973376, 16216720, 19959040, 25946752, 32433440, 51893504, 64866880, 129733760, 259467520]

約数ペア:

[(1, 259467520), (2, 129733760), (4, 64866880), (5, 51893504), (8, 32433440), (10, 25946752), (13, 19959040), (16, 16216720), (20, 12973376), (26, 9979520), (31, 8369920), (32, 8108360), (40, 6486688), (52, 4989760), (62, 4184960), (64, 4054180), (65, 3991808), (80, 3243344), (104, 2494880), (124, 2092480), (128, 2027090), (130, 1995904), (155, 1673984), (160, 1621672), (208, 1247440), (248, 1046240), (256, 1013545), (260, 997952), (310, 836992), (320, 810836), (403, 643840), (416, 623720), (496, 523120), (503, 515840), (520, 498976), (620, 418496), (640, 405418), (806, 321920), (832, 311860), (992, 261560), (1006, 257920), (1040, 249488), (1240, 209248), (1280, 202709), (1612, 160960), (1664, 155930), (1984, 130780), (2012, 128960), (2015, 128768), (2080, 124744), (2480, 104624), (2515, 103168), (3224, 80480), (3328, 77965), (3968, 65390), (4024, 64480), (4030, 64384), (4160, 62372), (4960, 52312), (5030, 51584), (6448, 40240), (6539, 39680), (7936, 32695), (8048, 32240), (8060, 32192), (8320, 31186), (9920, 26156), (10060, 25792), (12896, 20120), (13078, 19840), (15593, 16640), (16096, 16120)]