645752320

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:236

約数の個数: 160

約数和(自身を含む): 1634181120

約数和(自身を除く): 988428800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 79, 80, 103, 124, 128, 155, 158, 160, 206, 248, 256, 310, 316, 320, 395, 412, 496, 512, 515, 620, 632, 640, 790, 824, 992, 1030, 1240, 1264, 1280, 1580, 1648, 1984, 2060, 2449, 2480, 2528, 2560, 3160, 3193, 3296, 3968, 4120, 4898, 4960, 5056, 6320, 6386, 6592, 7936, 8137, 8240, 9796, 9920, 10112, 12245, 12640, 12772, 13184, 15872, 15965, 16274, 16480, 19592, 19840, 20224, 24490, 25280, 25544, 26368, 31930, 32548, 32960, 39184, 39680, 40448, 40685, 48980, 50560, 51088, 52736, 63860, 65096, 65920, 78368, 79360, 81370, 97960, 101120, 102176, 127720, 130192, 131840, 156736, 162740, 195920, 202240, 204352, 252247, 255440, 260384, 263680, 313472, 325480, 391840, 408704, 504494, 510880, 520768, 626944, 650960, 783680, 817408, 1008988, 1021760, 1041536, 1253888, 1261235, 1301920, 1567360, 1634816, 2017976, 2043520, 2083072, 2522470, 2603840, 3134720, 4035952, 4087040, 4166144, 5044940, 5207680, 6269440, 8071904, 8174080, 10089880, 10415360, 16143808, 20179760, 20830720, 32287616, 40359520, 64575232, 80719040, 129150464, 161438080, 322876160, 645752320]

約数ペア:

[(1, 645752320), (2, 322876160), (4, 161438080), (5, 129150464), (8, 80719040), (10, 64575232), (16, 40359520), (20, 32287616), (31, 20830720), (32, 20179760), (40, 16143808), (62, 10415360), (64, 10089880), (79, 8174080), (80, 8071904), (103, 6269440), (124, 5207680), (128, 5044940), (155, 4166144), (158, 4087040), (160, 4035952), (206, 3134720), (248, 2603840), (256, 2522470), (310, 2083072), (316, 2043520), (320, 2017976), (395, 1634816), (412, 1567360), (496, 1301920), (512, 1261235), (515, 1253888), (620, 1041536), (632, 1021760), (640, 1008988), (790, 817408), (824, 783680), (992, 650960), (1030, 626944), (1240, 520768), (1264, 510880), (1280, 504494), (1580, 408704), (1648, 391840), (1984, 325480), (2060, 313472), (2449, 263680), (2480, 260384), (2528, 255440), (2560, 252247), (3160, 204352), (3193, 202240), (3296, 195920), (3968, 162740), (4120, 156736), (4898, 131840), (4960, 130192), (5056, 127720), (6320, 102176), (6386, 101120), (6592, 97960), (7936, 81370), (8137, 79360), (8240, 78368), (9796, 65920), (9920, 65096), (10112, 63860), (12245, 52736), (12640, 51088), (12772, 50560), (13184, 48980), (15872, 40685), (15965, 40448), (16274, 39680), (16480, 39184), (19592, 32960), (19840, 32548), (20224, 31930), (24490, 26368), (25280, 25544)]