999400640

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{503}}^1\times {\mathrm{887}}^1$

素因数の和:1414

約数の個数: 112

約数和(自身を含む): 2728276992

約数和(自身を除く): 1728876352

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 503, 560, 887, 1006, 1120, 1774, 2012, 2240, 2515, 3521, 3548, 4024, 4435, 5030, 6209, 7042, 7096, 8048, 8870, 10060, 12418, 14084, 14192, 16096, 17605, 17740, 20120, 24836, 28168, 28384, 31045, 32192, 35210, 35480, 40240, 49672, 56336, 56768, 62090, 70420, 70960, 80480, 99344, 112672, 124180, 140840, 141920, 160960, 198688, 225344, 248360, 281680, 283840, 397376, 446161, 496720, 563360, 892322, 993440, 1126720, 1784644, 1986880, 2230805, 3123127, 3569288, 4461610, 6246254, 7138576, 8923220, 12492508, 14277152, 15615635, 17846440, 24985016, 28554304, 31231270, 35692880, 49970032, 62462540, 71385760, 99940064, 124925080, 142771520, 199880128, 249850160, 499700320, 999400640]

約数ペア:

[(1, 999400640), (2, 499700320), (4, 249850160), (5, 199880128), (7, 142771520), (8, 124925080), (10, 99940064), (14, 71385760), (16, 62462540), (20, 49970032), (28, 35692880), (32, 31231270), (35, 28554304), (40, 24985016), (56, 17846440), (64, 15615635), (70, 14277152), (80, 12492508), (112, 8923220), (140, 7138576), (160, 6246254), (224, 4461610), (280, 3569288), (320, 3123127), (448, 2230805), (503, 1986880), (560, 1784644), (887, 1126720), (1006, 993440), (1120, 892322), (1774, 563360), (2012, 496720), (2240, 446161), (2515, 397376), (3521, 283840), (3548, 281680), (4024, 248360), (4435, 225344), (5030, 198688), (6209, 160960), (7042, 141920), (7096, 140840), (8048, 124180), (8870, 112672), (10060, 99344), (12418, 80480), (14084, 70960), (14192, 70420), (16096, 62090), (17605, 56768), (17740, 56336), (20120, 49672), (24836, 40240), (28168, 35480), (28384, 35210), (31045, 32192)]