20154344840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{503}}^1\times {\mathrm{20443}}^1$

素因数の和:20971

約数の個数: 96

約数和(自身を含む): 52858370880

約数和(自身を除く): 32704026040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 503, 980, 1006, 1960, 2012, 2515, 3521, 4024, 5030, 7042, 10060, 14084, 17605, 20120, 20443, 24647, 28168, 35210, 40886, 49294, 70420, 81772, 98588, 102215, 123235, 140840, 143101, 163544, 197176, 204430, 246470, 286202, 408860, 492940, 572404, 715505, 817720, 985880, 1001707, 1144808, 1431010, 2003414, 2862020, 4006828, 5008535, 5724040, 8013656, 10017070, 10282829, 20034140, 20565658, 40068280, 41131316, 51414145, 71979803, 82262632, 102828290, 143959606, 205656580, 287919212, 359899015, 411313160, 503858621, 575838424, 719798030, 1007717242, 1439596060, 2015434484, 2519293105, 2879192120, 4030868968, 5038586210, 10077172420, 20154344840]

約数ペア:

[(1, 20154344840), (2, 10077172420), (4, 5038586210), (5, 4030868968), (7, 2879192120), (8, 2519293105), (10, 2015434484), (14, 1439596060), (20, 1007717242), (28, 719798030), (35, 575838424), (40, 503858621), (49, 411313160), (56, 359899015), (70, 287919212), (98, 205656580), (140, 143959606), (196, 102828290), (245, 82262632), (280, 71979803), (392, 51414145), (490, 41131316), (503, 40068280), (980, 20565658), (1006, 20034140), (1960, 10282829), (2012, 10017070), (2515, 8013656), (3521, 5724040), (4024, 5008535), (5030, 4006828), (7042, 2862020), (10060, 2003414), (14084, 1431010), (17605, 1144808), (20120, 1001707), (20443, 985880), (24647, 817720), (28168, 715505), (35210, 572404), (40886, 492940), (49294, 408860), (70420, 286202), (81772, 246470), (98588, 204430), (102215, 197176), (123235, 163544), (140840, 143101)]