39918080

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{503}}^1$

素因数の和:557

約数の個数: 80

約数和(自身を含む): 98993664

約数和(自身を除く): 59075584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 503, 512, 620, 640, 992, 1006, 1240, 1280, 1984, 2012, 2480, 2515, 2560, 3968, 4024, 4960, 5030, 7936, 8048, 9920, 10060, 15593, 15872, 16096, 19840, 20120, 31186, 32192, 39680, 40240, 62372, 64384, 77965, 79360, 80480, 124744, 128768, 155930, 160960, 249488, 257536, 311860, 321920, 498976, 623720, 643840, 997952, 1247440, 1287680, 1995904, 2494880, 3991808, 4989760, 7983616, 9979520, 19959040, 39918080]

約数ペア:

[(1, 39918080), (2, 19959040), (4, 9979520), (5, 7983616), (8, 4989760), (10, 3991808), (16, 2494880), (20, 1995904), (31, 1287680), (32, 1247440), (40, 997952), (62, 643840), (64, 623720), (80, 498976), (124, 321920), (128, 311860), (155, 257536), (160, 249488), (248, 160960), (256, 155930), (310, 128768), (320, 124744), (496, 80480), (503, 79360), (512, 77965), (620, 64384), (640, 62372), (992, 40240), (1006, 39680), (1240, 32192), (1280, 31186), (1984, 20120), (2012, 19840), (2480, 16096), (2515, 15872), (2560, 15593), (3968, 10060), (4024, 9920), (4960, 8048), (5030, 7936)]